Hi all,

I back-up my data using Odoo. Then reinstalled the whole OS (Windows). Now after I restore the database at the beginning of Odoo-11 installation process, I got "Internal server error 500". here's what I found at the log file (odoo.log):

2020-03-31 20:00:33,186 9892 INFO ? odoo: Odoo version 11.0-20200331
2020-03-31 20:00:33,186 9892 INFO ? odoo: Using configuration file at C:\Program Files (x86)\Odoo 11.0\server\odoo.conf
2020-03-31 20:00:33,186 9892 INFO ? odoo: addons paths: ['c:\\users\\someuser\\appdata\\local\\openerp s.a\\odoo\\addons\\11.0', 'c:\\program files (x86)\\odoo 11.0\\server\\odoo\\addons', 'C:\\Program Files (x86)\\Odoo 11.0\\server\\odoo\\addons']
2020-03-31 20:00:33,186 9892 INFO ? odoo: database: openpg@localhost:5432
2020-03-31 20:00:33,294 9892 INFO ? odoo.service.server: Initiating shutdown
2020-03-31 20:00:33,294 9892 INFO ? odoo.service.server: Hit CTRL-C again or send a second signal to force the shutdown.
2020-03-31 20:00:35,622 940 INFO ? odoo: Odoo version 11.0-20200331
2020-03-31 20:00:35,622 940 INFO ? odoo: Using configuration file at C:\Program Files (x86)\Odoo 11.0\server\odoo.conf
2020-03-31 20:00:35,622 940 INFO ? odoo: addons paths: ['c:\\users\\ someuser\\appdata\\local\\openerp s.a\\odoo\\addons\\11.0', 'c:\\program files (x86)\\odoo 11.0\\server\\odoo\\addons', 'C:\\Program Files (x86)\\Odoo 11.0\\server\\odoo\\addons']
2020-03-31 20:00:35,622 940 INFO ? odoo: database: openpg@localhost:5432
2020-03-31 20:00:36,513 940 INFO ? odoo.service.server: HTTP service (werkzeug) running on MANILI:8069
2020-03-31 20:00:36,950 940 INFO ? odoo.addons.base.ir.ir_actions_report: Will use the Wkhtmltopdf binary at C:\Program Files (x86)\Odoo 11.0\thirdparty\wkhtmltopdf.exe
2020-03-31 20:02:53,948 940 INFO ? odoo.addons.sms.wizard.send_sms: The `phonenumbers` Python module is not available. Phone number validation will be skipped. Try `pip3 install phonenumbers` to install it.
2020-03-31 20:02:58,619 940 INFO ? odoo.http: HTTP Configuring static files
2020-03-31 20:02:58,744 940 INFO ? odoo.http: Generating nondb routing
2020-03-31 20:02:59,010 940 INFO ? werkzeug: 127.0.0.1 - - [31/Mar/2020 20:02:59] "GET / HTTP/1.1" 303 -
2020-03-31 20:02:59,260 940 INFO ? werkzeug: 127.0.0.1 - - [31/Mar/2020 20:02:59] "GET /web HTTP/1.1" 303 -
2020-03-31 20:02:59,885 940 INFO ? werkzeug: 127.0.0.1 - - [31/Mar/2020 20:02:59] "GET /web/database/selector HTTP/1.1" 200 -
2020-03-31 20:03:03,525 940 INFO ? werkzeug: 127.0.0.1 - - [31/Mar/2020 20:03:03] "GET /web/static/lib/fontawesome/fonts/fontawesome-webfont.woff2?v=4.7.0 HTTP/1.1" 200 -
2020-03-31 20:03:04,150 940 INFO ? werkzeug: 127.0.0.1 - - [31/Mar/2020 20:03:04] "GET /web/static/src/img/favicon.ico HTTP/1.1" 200 -
2020-03-31 20:03:55,127 940 INFO IVS_CRM odoo.modules.loading: loading 1 modules...
2020-03-31 20:03:55,143 940 INFO IVS_CRM odoo.modules.loading: 1 modules loaded in 0.02s, 0 queries
2020-03-31 20:03:55,300 940 WARNING IVS_CRM odoo.modules.graph: module web_rtl: not installable, skipped
2020-03-31 20:03:55,346 940 INFO IVS_CRM odoo.modules.loading: loading 32 modules...
2020-03-31 20:03:55,862 940 INFO IVS_CRM odoo.modules.loading: 32 modules loaded in 0.52s, 0 queries
2020-03-31 20:03:56,300 940 INFO IVS_CRM odoo.modules.loading: Modules loaded.
2020-03-31 20:04:07,579 940 INFO IVS_CRM odoo.service.db: RESTORE DB: IVS_CRM
2020-03-31 20:04:07,595 940 INFO IVS_CRM werkzeug: 127.0.0.1 - - [31/Mar/2020 20:04:07] "POST /web/database/restore HTTP/1.1" 303 -
2020-03-31 20:04:07,657 940 INFO IVS_CRM odoo.addons.base.ir.ir_http: Generating routing map
2020-03-31 20:04:07,985 940 INFO IVS_CRM odoo.modules.registry: At least one model cache has been invalidated, signaling through the database.
2020-03-31 20:04:07,985 940 INFO IVS_CRM werkzeug: 127.0.0.1 - - [31/Mar/2020 20:04:07] "GET /web/database/manager HTTP/1.1" 200 -
2020-03-31 20:04:38,201 940 INFO IVS_CRM odoo.addons.base.ir.ir_cron: Starting job `Calendar: Event Reminder`.
2020-03-31 20:04:38,294 940 INFO IVS_CRM odoo.modules.registry: At least one model cache has been invalidated, signaling through the database.
2020-03-31 20:04:38,294 940 INFO IVS_CRM odoo.addons.base.ir.ir_cron: Job `Calendar: Event Reminder` done.
2020-03-31 20:04:38,294 940 INFO IVS_CRM odoo.addons.base.ir.ir_cron: Starting job `Mail: Fetchmail Service`.
2020-03-31 20:04:38,325 940 INFO IVS_CRM odoo.addons.base.ir.ir_cron: Job `Mail: Fetchmail Service` done.
2020-03-31 20:04:38,325 940 INFO IVS_CRM odoo.addons.base.ir.ir_cron: Starting job `Mail: Email Queue Manager`.
2020-03-31 20:04:38,341 940 INFO IVS_CRM odoo.addons.base.ir.ir_cron: Job `Mail: Email Queue Manager` done.
2020-03-31 20:04:38,341 940 INFO IVS_CRM odoo.addons.base.ir.ir_cron: Starting job `Google Calendar: synchronization`.
2020-03-31 20:04:38,341 940 INFO IVS_CRM odoo.addons.google_calendar.models.google_calendar: Calendar Synchro - Started by cron
2020-03-31 20:04:38,341 940 INFO IVS_CRM odoo.addons.google_calendar.models.google_calendar: Calendar Synchro - Starting synchronization for a new user [13]
2020-03-31 20:04:38,372 940 INFO IVS_CRM requests.packages.urllib3.connectionpool: Starting new HTTPS connection (1): accounts.google.com
2020-03-31 20:04:39,294 940 INFO IVS_CRM requests.packages.urllib3.connectionpool: Starting new HTTPS connection (1): www.googleapis.com
2020-03-31 20:04:39,856 940 INFO IVS_CRM odoo.addons.google_calendar.models.google_calendar: [13] Calendar Synchro - MODE SINCE_MODIFIED : 2018-10-01 11:13:54 !
2020-03-31 20:04:39,887 940 INFO IVS_CRM requests.packages.urllib3.connectionpool: Starting new HTTPS connection (1): www.googleapis.com
2020-03-31 20:04:40,512 940 ERROR IVS_CRM odoo.addons.google_account.models.google_service: Bad google request : b'{\n "error": {\n  "errors": [\n   {\n    "domain": "calendar",\n    "reason": "updatedMinTooLongAgo",\n    "message": "The requested minimum modification time lies too far in the past.",\n    "locationType": "parameter",\n    "location": "updatedMin"\n   }\n  ],\n  "code": 410,\n  "message": "The requested minimum modification time lies too far in the past."\n }\n}\n' !
Traceback (most recent call last):
  File "c:\program files (x86)\odoo 11.0\server\odoo\addons\google_account\models\google_service.py", line 172, in _do_request
    res.raise_for_status()
  File "C:\Program Files (x86)\Odoo 11.0\python\lib\site-packages\requests\models.py", line 862, in raise_for_status
    raise HTTPError(http_error_msg, response=self)
requests.exceptions.HTTPError: 410 Client Error: Gone for url: https://www.googleapis.com/calendar/v3/calendars/primary/events?fields=items%2CnextPageToken&access_token=ya29.a0Ae4lvC3rFjAyhsCbRCbgKToNlmO8ik8iEoY5Rgy07IPpUTxt-nJE3NJNj7VonPk5JFbYVE253c6u_o0KBn7QGNHONLF6LRXC6Nr4NQaTAQ1uOjsGUES7KrG6zQqVbwQO-SpxXSlvtlH71Gj3dZ2CvPLO8uMjvRGgaHW1FQ&maxResults=1000&updatedMin=2018-10-01T11%3A13%3A54.000000z&showDeleted=True
2020-03-31 20:04:40,544 940 INFO IVS_CRM odoo.addons.google_calendar.models.google_calendar: [13] Calendar Synchro - Exception : Google is lost... the next synchro will be a full synchro. 

 The requested minimum modification time lies too far in the past.
 !
2020-03-31 20:04:40,544 940 INFO IVS_CRM odoo.addons.google_calendar.models.google_calendar: Calendar Synchro - Ended by cron
2020-03-31 20:04:40,544 940 INFO IVS_CRM odoo.addons.base.ir.ir_cron: Job `Google Calendar: synchronization` done.
2020-03-31 20:04:40,544 940 INFO IVS_CRM odoo.addons.base.ir.ir_cron: Starting job `Base: Auto-vacuum internal data`.
2020-03-31 20:04:40,559 940 INFO IVS_CRM odoo.addons.base.ir.ir_attachment: filestore gc 0 checked, 0 removed
2020-03-31 20:04:40,590 940 INFO IVS_CRM odoo.models.unlink: User #1 deleted res.config.settings records with IDs: [12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22]
2020-03-31 20:04:40,606 940 ERROR IVS_CRM odoo.sql_db: bad query: DELETE FROM change_password_wizard WHERE id IN (2, 3)
ERROR: null value in column "wizard_id" violates not-null constraint
DETAIL:  Failing row contains (2, null, 18, null, null, 12, 2018-04-23 10:40:00.044311, 12, 2018-04-23 10:40:04.108591).
CONTEXT:  SQL statement "UPDATE ONLY "public"."change_password_user" SET "wizard_id" = NULL WHERE $1 OPERATOR(pg_catalog.=) "wizard_id""

2020-03-31 20:04:40,606 940 WARNING IVS_CRM odoo.addons.base.ir.ir_autovacuum: Failed to clean transient model change.password.wizard()
null value in column "wizard_id" violates not-null constraint
DETAIL:  Failing row contains (2, null, 18, null, null, 12, 2018-04-23 10:40:00.044311, 12, 2018-04-23 10:40:04.108591).
CONTEXT:  SQL statement "UPDATE ONLY "public"."change_password_user" SET "wizard_id" = NULL WHERE $1 OPERATOR(pg_catalog.=) "wizard_id""

2020-03-31 20:04:40,606 940 INFO IVS_CRM odoo.models.unlink: User #1 deleted change.password.user records with IDs: [2, 3]
2020-03-31 20:04:40,622 940 INFO IVS_CRM odoo.models.unlink: User #1 deleted base_import.import records with IDs: [9, 10, 11, 12, 13, 14]
2020-03-31 20:04:40,747 940 INFO IVS_CRM odoo.models.unlink: User #1 deleted mail.compose.message records with IDs: [9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 54, 24, 25, 29, 26, 28, 27, 30, 44, 31, 32, 33, 34, 35, 57, 36, 37, 38, 39, 40, 41, 42, 113, 43, 45, 46, 47, 48, 49, 50, 51, 53, 66, 73, 52, 55, 56, 58, 59, 63, 64, 65, 60, 61, 62, 71, 72, 67, 68, 69, 70, 74, 75, 76, 77, 78, 87, 79, 115, 80, 81, 82, 83, 84, 85, 86, 88, 89, 90, 91, 92, 95, 93, 94, 96, 125, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 114, 116, 117, 118, 119, 120, 121, 122, 123, 124, 126, 127, 128, 129, 130, 131, 132, 133, 134, 161, 135, 136, 137, 138, 140, 139, 141, 142, 143, 144, 145, 146, 147, 148, 149, 150, 151, 152, 153, 154, 155, 156, 157, 158, 159, 163, 160, 165, 162, 164, 166, 167, 168, 169, 170, 171, 172, 173, 174, 175, 176, 177, 178, 179, 180, 181, 182, 183, 184, 185, 186, 187, 188, 189, 190, 207, 191, 192, 193, 194, 195, 196, 197, 198, 199, 200, 201, 202, 220, 203, 204, 205, 206, 208, 213, 209, 214, 216, 210, 211, 212, 215, 217, 218, 219, 221, 222, 223, 224, 225, 226, 227, 228, 229, 230, 231, 232, 233, 234, 235, 236, 244, 237, 238, 239, 240, 241, 242, 243, 245, 246, 247, 248, 249, 250, 251, 252, 253, 254, 255, 256, 257, 258, 259, 260, 261, 262, 263, 265, 264, 266, 267, 268, 269, 270]
2020-03-31 20:04:40,763 940 INFO IVS_CRM odoo.models.unlink: User #1 deleted crm.lead.lost records with IDs: [7, 8, 9, 10, 11, 13, 14, 15, 12, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48]
2020-03-31 20:04:40,778 940 INFO IVS_CRM odoo.addons.base.ir.ir_autovacuum: GC'd 708 user log entries
2020-03-31 20:04:40,793 940 INFO IVS_CRM odoo.addons.base.ir.ir_cron: Job `Base: Auto-vacuum internal data` done.
2020-03-31 20:04:40,793 940 INFO IVS_CRM odoo.addons.base.ir.ir_cron: Starting job `Publisher: Update Notification`.
2020-03-31 20:04:40,809 940 INFO IVS_CRM requests.packages.urllib3.connectionpool: Starting new HTTP connection (1): services.openerp.com
2020-03-31 20:04:42,262 940 INFO IVS_CRM odoo.addons.base.ir.ir_cron: Job `Publisher: Update Notification` done.
2020-03-31 20:08:42,310 940 INFO IVS_CRM odoo.addons.base.ir.ir_cron: Starting job `Mail: Fetchmail Service`.
2020-03-31 20:08:42,341 940 INFO IVS_CRM odoo.addons.base.ir.ir_cron: Job `Mail: Fetchmail Service` done.
2020-03-31 20:09:45,161 940 INFO IVS_CRM werkzeug: 127.0.0.1 - - [31/Mar/2020 20:09:45] "GET /web?db=IVS_CRM HTTP/1.1" 303 -
2020-03-31 20:09:50,973 940 INFO IVS_CRM odoo.models.unlink: User #1 deleted ir.attachment records with IDs: [1044]
2020-03-31 20:09:52,192 940 INFO IVS_CRM odoo.models.unlink: User #1 deleted ir.attachment records with IDs: [1045]
2020-03-31 20:09:53,472 940 INFO IVS_CRM odoo.models.unlink: User #1 deleted ir.attachment records with IDs: [1046]
2020-03-31 20:09:53,613 940 INFO IVS_CRM odoo.models.unlink: User #1 deleted ir.attachment records with IDs: [1047]
2020-03-31 20:09:53,816 940 INFO IVS_CRM werkzeug: 127.0.0.1 - - [31/Mar/2020 20:09:53] "GET /web/login HTTP/1.1" 500 -
2020-03-31 20:09:53,928 940 ERROR IVS_CRM werkzeug: Error on request:
Traceback (most recent call last):
  File "C:\Program Files (x86)\Odoo 11.0\python\lib\site-packages\werkzeug\serving.py", line 209, in run_wsgi
    execute(self.server.app)
  File "C:\Program Files (x86)\Odoo 11.0\python\lib\site-packages\werkzeug\serving.py", line 197, in execute
    application_iter = app(environ, start_response)
  File "C:\Program Files (x86)\Odoo 11.0\server\odoo\service\server.py", line 348, in app
    return self.app(e, s)
  File "C:\Program Files (x86)\Odoo 11.0\server\odoo\service\wsgi_server.py", line 166, in application
    return application_unproxied(environ, start_response)
  File "C:\Program Files (x86)\Odoo 11.0\server\odoo\service\wsgi_server.py", line 154, in application_unproxied
    result = handler(environ, start_response)
  File "C:\Program Files (x86)\Odoo 11.0\server\odoo\http.py", line 1321, in __call__
    return self.dispatch(environ, start_response)
  File "C:\Program Files (x86)\Odoo 11.0\server\odoo\http.py", line 1295, in __call__
    return self.app(environ, start_wrapped)
  File "C:\Program Files (x86)\Odoo 11.0\python\lib\site-packages\werkzeug\wsgi.py", line 600, in __call__
    return self.app(environ, start_response)
  File "C:\Program Files (x86)\Odoo 11.0\server\odoo\http.py", line 1493, in dispatch
    result = ir_http._dispatch()
  File "c:\program files (x86)\odoo 11.0\server\odoo\addons\auth_signup\models\ir_http.py", line 19, in _dispatch
    return super(Http, cls)._dispatch()
  File "c:\program files (x86)\odoo 11.0\server\odoo\addons\web_editor\models\ir_http.py", line 22, in _dispatch
    return super(IrHttp, cls)._dispatch()
  File "c:\program files (x86)\odoo 11.0\server\odoo\addons\http_routing\models\ir_http.py", line 396, in _dispatch
    result = super(IrHttp, cls)._dispatch()
  File "c:\program files (x86)\odoo 11.0\server\odoo\addons\utm\models\ir_http.py", line 26, in _dispatch
    response = super(IrHttp, cls)._dispatch()
  File "c:\program files (x86)\odoo 11.0\server\odoo\addons\base\ir\ir_http.py", line 212, in _dispatch
    return cls._handle_exception(e)
  File "c:\program files (x86)\odoo 11.0\server\odoo\addons\utm\models\ir_http.py", line 31, in _handle_exception
    response = super(IrHttp, cls)._handle_exception(exc)
  File "c:\program files (x86)\odoo 11.0\server\odoo\addons\base\ir\ir_http.py", line 182, in _handle_exception
    return request._handle_exception(exception)
  File "C:\Program Files (x86)\Odoo 11.0\server\odoo\http.py", line 773, in _handle_exception
    return super(HttpRequest, self)._handle_exception(exception)
  File "C:\Program Files (x86)\Odoo 11.0\server\odoo\http.py", line 312, in _handle_exception
    raise pycompat.reraise(type(exception), exception, sys.exc_info()[2])
  File "C:\Program Files (x86)\Odoo 11.0\server\odoo\tools\pycompat.py", line 87, in reraise
    raise value
  File "c:\program files (x86)\odoo 11.0\server\odoo\addons\base\ir\ir_http.py", line 208, in _dispatch
    result = request.dispatch()
  File "C:\Program Files (x86)\Odoo 11.0\server\odoo\http.py", line 832, in dispatch
    r = self._call_function(**self.params)
  File "C:\Program Files (x86)\Odoo 11.0\server\odoo\http.py", line 344, in _call_function
    return checked_call(self.db, *args, **kwargs)
  File "C:\Program Files (x86)\Odoo 11.0\server\odoo\service\model.py", line 97, in wrapper
    return f(dbname, *args, **kwargs)
  File "C:\Program Files (x86)\Odoo 11.0\server\odoo\http.py", line 340, in checked_call
    result.flatten()
  File "C:\Program Files (x86)\Odoo 11.0\server\odoo\http.py", line 1272, in flatten
    self.response.append(self.render())
  File "C:\Program Files (x86)\Odoo 11.0\server\odoo\http.py", line 1265, in render
    return env["ir.ui.view"].render_template(self.template, self.qcontext)
  File "c:\program files (x86)\odoo 11.0\server\odoo\addons\base\ir\ir_ui_view.py", line 1230, in render_template
    return self.browse(self.get_view_id(template)).render(values, engine)
  File "c:\program files (x86)\odoo 11.0\server\odoo\addons\web_editor\models\ir_ui_view.py", line 27, in render
    return super(IrUiView, self).render(values=values, engine=engine)
  File "c:\program files (x86)\odoo 11.0\server\odoo\addons\base\ir\ir_ui_view.py", line 1239, in render
    return self.env[engine].render(self.id, qcontext)
  File "c:\program files (x86)\odoo 11.0\server\odoo\addons\base\ir\ir_qweb\ir_qweb.py", line 57, in render
    return super(IrQWeb, self).render(id_or_xml_id, values=values, **context)
  File "c:\program files (x86)\odoo 11.0\server\odoo\addons\base\ir\ir_qweb\qweb.py", line 275, in render
    self.compile(template, options)(self, body.append, values or {})
  File "c:\program files (x86)\odoo 11.0\server\odoo\addons\base\ir\ir_qweb\qweb.py", line 348, in _compiled_fn
    raise e
  File "c:\program files (x86)\odoo 11.0\server\odoo\addons\base\ir\ir_qweb\qweb.py", line 346, in _compiled_fn
    return compiled(self, append, new, options, log)
  File "<template>", line 1, in template_161_5
    
  File "c:\program files (x86)\odoo 11.0\server\odoo\addons\base\ir\ir_qweb\qweb.py", line 348, in _compiled_fn
    raise e
  File "c:\program files (x86)\odoo 11.0\server\odoo\addons\base\ir\ir_qweb\qweb.py", line 346, in _compiled_fn
    return compiled(self, append, new, options, log)
  File "<template>", line 1, in template_web_login_layout_11
    
  File "c:\program files (x86)\odoo 11.0\server\odoo\addons\base\ir\ir_qweb\qweb.py", line 353, in _compiled_fn
    raise QWebException("Error to render compiling AST", e, path, node and etree.tostring(node[0], encoding='unicode'), name)
odoo.addons.base.ir.ir_qweb.qweb.QWebException: unsupported operand type(s) for +: 'NoneType' and 'str'
Traceback (most recent call last):
  File "c:\program files (x86)\odoo 11.0\server\odoo\addons\base\ir\ir_qweb\qweb.py", line 346, in _compiled_fn
    return compiled(self, append, new, options, log)
  File "<template>", line 1, in template_web_layout_32
TypeError: unsupported operand type(s) for +: 'NoneType' and 'str'

Error to render compiling AST
TypeError: unsupported operand type(s) for +: 'NoneType' and 'str'
Template: web.layout
Path: /templates/t/t
Node: <t t-set="body_classname" t-value="lang_direction + ' ' + (body_classname or '')"/>
2020-03-31 20:13:42,380 940 INFO IVS_CRM odoo.addons.base.ir.ir_cron: Starting job `Mail: Fetchmail Service`.
2020-03-31 20:13:42,397 940 INFO IVS_CRM odoo.addons.base.ir.ir_cron: Job `Mail: Fetchmail Service` done.
2020-03-31 20:18:42,436 940 INFO IVS_CRM odoo.addons.base.ir.ir_cron: Starting job `Mail: Fetchmail Service`.
2020-03-31 20:18:42,467 940 INFO IVS_CRM odoo.addons.base.ir.ir_cron: Job `Mail: Fetchmail Service` done.
2020-03-31 20:23:42,538 940 INFO IVS_CRM odoo.addons.base.ir.ir_cron: Starting job `Calendar: Event Reminder`.
2020-03-31 20:23:42,554 940 INFO IVS_CRM odoo.modules.registry: At least one model cache has been invalidated, signaling through the database.
2020-03-31 20:23:42,568 940 INFO IVS_CRM odoo.addons.base.ir.ir_cron: Job `Calendar: Event Reminder` done.
2020-03-31 20:23:42,568 940 INFO IVS_CRM odoo.addons.base.ir.ir_cron: Starting job `Mail: Email Queue Manager`.
2020-03-31 20:23:42,568 940 INFO IVS_CRM odoo.addons.base.ir.ir_cron: Job `Mail: Email Queue Manager` done.
2020-03-31 20:23:42,568 940 INFO IVS_CRM odoo.addons.base.ir.ir_cron: Starting job `Mail: Fetchmail Service`.
2020-03-31 20:23:42,584 940 INFO IVS_CRM odoo.addons.base.ir.ir_cron: Job `Mail: Fetchmail Service` done.
2020-03-31 20:32:26,908 5200 INFO ? odoo: Odoo version 11.0-20200331
2020-03-31 20:32:26,924 5200 INFO ? odoo: Using configuration file at C:\Program Files (x86)\Odoo 11.0\server\odoo.conf
2020-03-31 20:32:26,924 5200 INFO ? odoo: addons paths: ['c:\\users\\mohammadaminnili\\appdata\\local\\openerp s.a\\odoo\\addons\\11.0', 'c:\\program files (x86)\\odoo 11.0\\server\\odoo\\addons', 'C:\\Program Files (x86)\\Odoo 11.0\\server\\odoo\\addons']
2020-03-31 20:32:26,924 5200 INFO ? odoo: database: openpg@localhost:5432
2020-03-31 20:32:28,049 5200 INFO ? odoo.addons.base.ir.ir_actions_report: Will use the Wkhtmltopdf binary at C:\Program Files (x86)\Odoo 11.0\thirdparty\wkhtmltopdf.exe
2020-03-31 20:32:28,564 5200 INFO ? odoo.service.server: HTTP service (werkzeug) running on MANILI:8069
2020-03-31 20:44:27,328 5200 INFO ? odoo.addons.sms.wizard.send_sms: The `phonenumbers` Python module is not available. Phone number validation will be skipped. Try `pip3 install phonenumbers` to install it.
2020-03-31 20:44:28,312 5200 INFO ? odoo.http: HTTP Configuring static files
2020-03-31 20:44:28,484 5200 INFO IVS_CRM odoo.modules.loading: loading 1 modules...
2020-03-31 20:44:28,500 5200 INFO IVS_CRM odoo.modules.loading: 1 modules loaded in 0.02s, 0 queries
2020-03-31 20:44:28,609 5200 WARNING IVS_CRM odoo.modules.graph: module web_rtl: not installable, skipped
2020-03-31 20:44:28,640 5200 INFO IVS_CRM odoo.modules.loading: loading 32 modules...
2020-03-31 20:44:28,796 5200 INFO IVS_CRM odoo.modules.loading: 32 modules loaded in 0.16s, 0 queries
2020-03-31 20:44:29,140 5200 INFO IVS_CRM odoo.modules.loading: Modules loaded.
2020-03-31 20:44:29,156 5200 INFO IVS_CRM odoo.addons.base.ir.ir_http: Generating routing map
2020-03-31 20:44:35,358 5200 INFO IVS_CRM odoo.models.unlink: User #1 deleted ir.attachment records with IDs: [1044]
2020-03-31 20:44:36,530 5200 INFO IVS_CRM odoo.models.unlink: User #1 deleted ir.attachment records with IDs: [1045]
2020-03-31 20:44:37,920 5200 INFO IVS_CRM odoo.models.unlink: User #1 deleted ir.attachment records with IDs: [1046]
2020-03-31 20:44:38,061 5200 INFO IVS_CRM odoo.models.unlink: User #1 deleted ir.attachment records with IDs: [1047]
2020-03-31 20:44:38,281 5200 INFO IVS_CRM werkzeug: 127.0.0.1 - - [31/Mar/2020 20:44:38] "GET /web/login HTTP/1.1" 500 -
2020-03-31 20:44:38,421 5200 ERROR IVS_CRM werkzeug: Error on request:
Traceback (most recent call last):
  File "C:\Program Files (x86)\Odoo 11.0\python\lib\site-packages\werkzeug\serving.py", line 209, in run_wsgi
    execute(self.server.app)
  File "C:\Program Files (x86)\Odoo 11.0\python\lib\site-packages\werkzeug\serving.py", line 197, in execute
    application_iter = app(environ, start_response)
  File "C:\Program Files (x86)\Odoo 11.0\server\odoo\service\server.py", line 348, in app
    return self.app(e, s)
  File "C:\Program Files (x86)\Odoo 11.0\server\odoo\service\wsgi_server.py", line 166, in application
    return application_unproxied(environ, start_response)
  File "C:\Program Files (x86)\Odoo 11.0\server\odoo\service\wsgi_server.py", line 154, in application_unproxied
    result = handler(environ, start_response)
  File "C:\Program Files (x86)\Odoo 11.0\server\odoo\http.py", line 1321, in __call__
    return self.dispatch(environ, start_response)
  File "C:\Program Files (x86)\Odoo 11.0\server\odoo\http.py", line 1295, in __call__
    return self.app(environ, start_wrapped)
  File "C:\Program Files (x86)\Odoo 11.0\python\lib\site-packages\werkzeug\wsgi.py", line 600, in __call__
    return self.app(environ, start_response)
  File "C:\Program Files (x86)\Odoo 11.0\server\odoo\http.py", line 1493, in dispatch
    result = ir_http._dispatch()
  File "c:\program files (x86)\odoo 11.0\server\odoo\addons\auth_signup\models\ir_http.py", line 19, in _dispatch
    return super(Http, cls)._dispatch()
  File "c:\program files (x86)\odoo 11.0\server\odoo\addons\web_editor\models\ir_http.py", line 22, in _dispatch
    return super(IrHttp, cls)._dispatch()
  File "c:\program files (x86)\odoo 11.0\server\odoo\addons\http_routing\models\ir_http.py", line 396, in _dispatch
    result = super(IrHttp, cls)._dispatch()
  File "c:\program files (x86)\odoo 11.0\server\odoo\addons\utm\models\ir_http.py", line 26, in _dispatch
    response = super(IrHttp, cls)._dispatch()
  File "c:\program files (x86)\odoo 11.0\server\odoo\addons\base\ir\ir_http.py", line 212, in _dispatch
    return cls._handle_exception(e)
  File "c:\program files (x86)\odoo 11.0\server\odoo\addons\utm\models\ir_http.py", line 31, in _handle_exception
    response = super(IrHttp, cls)._handle_exception(exc)
  File "c:\program files (x86)\odoo 11.0\server\odoo\addons\base\ir\ir_http.py", line 182, in _handle_exception
    return request._handle_exception(exception)
  File "C:\Program Files (x86)\Odoo 11.0\server\odoo\http.py", line 773, in _handle_exception
    return super(HttpRequest, self)._handle_exception(exception)
  File "C:\Program Files (x86)\Odoo 11.0\server\odoo\http.py", line 312, in _handle_exception
    raise pycompat.reraise(type(exception), exception, sys.exc_info()[2])
  File "C:\Program Files (x86)\Odoo 11.0\server\odoo\tools\pycompat.py", line 87, in reraise
    raise value
  File "c:\program files (x86)\odoo 11.0\server\odoo\addons\base\ir\ir_http.py", line 208, in _dispatch
    result = request.dispatch()
  File "C:\Program Files (x86)\Odoo 11.0\server\odoo\http.py", line 832, in dispatch
    r = self._call_function(**self.params)
  File "C:\Program Files (x86)\Odoo 11.0\server\odoo\http.py", line 344, in _call_function
    return checked_call(self.db, *args, **kwargs)
  File "C:\Program Files (x86)\Odoo 11.0\server\odoo\service\model.py", line 97, in wrapper
    return f(dbname, *args, **kwargs)
  File "C:\Program Files (x86)\Odoo 11.0\server\odoo\http.py", line 340, in checked_call
    result.flatten()
  File "C:\Program Files (x86)\Odoo 11.0\server\odoo\http.py", line 1272, in flatten
    self.response.append(self.render())
  File "C:\Program Files (x86)\Odoo 11.0\server\odoo\http.py", line 1265, in render
    return env["ir.ui.view"].render_template(self.template, self.qcontext)
  File "c:\program files (x86)\odoo 11.0\server\odoo\addons\base\ir\ir_ui_view.py", line 1230, in render_template
    return self.browse(self.get_view_id(template)).render(values, engine)
  File "c:\program files (x86)\odoo 11.0\server\odoo\addons\web_editor\models\ir_ui_view.py", line 27, in render
    return super(IrUiView, self).render(values=values, engine=engine)
  File "c:\program files (x86)\odoo 11.0\server\odoo\addons\base\ir\ir_ui_view.py", line 1239, in render
    return self.env[engine].render(self.id, qcontext)
  File "c:\program files (x86)\odoo 11.0\server\odoo\addons\base\ir\ir_qweb\ir_qweb.py", line 57, in render
    return super(IrQWeb, self).render(id_or_xml_id, values=values, **context)
  File "c:\program files (x86)\odoo 11.0\server\odoo\addons\base\ir\ir_qweb\qweb.py", line 275, in render
    self.compile(template, options)(self, body.append, values or {})
  File "c:\program files (x86)\odoo 11.0\server\odoo\addons\base\ir\ir_qweb\qweb.py", line 348, in _compiled_fn
    raise e
  File "c:\program files (x86)\odoo 11.0\server\odoo\addons\base\ir\ir_qweb\qweb.py", line 346, in _compiled_fn
    return compiled(self, append, new, options, log)
  File "<template>", line 1, in template_161_5
    
  File "c:\program files (x86)\odoo 11.0\server\odoo\addons\base\ir\ir_qweb\qweb.py", line 348, in _compiled_fn
    raise e
  File "c:\program files (x86)\odoo 11.0\server\odoo\addons\base\ir\ir_qweb\qweb.py", line 346, in _compiled_fn
    return compiled(self, append, new, options, log)
  File "<template>", line 1, in template_web_login_layout_11
    
  File "c:\program files (x86)\odoo 11.0\server\odoo\addons\base\ir\ir_qweb\qweb.py", line 353, in _compiled_fn
    node = element.getroottree().xpath(path) if ':' not in path else None
odoo.addons.base.ir.ir_qweb.qweb.QWebException: unsupported operand type(s) for +: 'NoneType' and 'str'
Traceback (most recent call last):
  File "c:\program files (x86)\odoo 11.0\server\odoo\addons\base\ir\ir_qweb\qweb.py", line 346, in _compiled_fn
    return compiled(self, append, new, options, log)
  File "<template>", line 1, in template_web_layout_32
TypeError: unsupported operand type(s) for +: 'NoneType' and 'str'

Error to render compiling AST
TypeError: unsupported operand type(s) for +: 'NoneType' and 'str'
Template: web.layout
Path: /templates/t/t
Node: <t t-set="body_classname" t-value="lang_direction + ' ' + (body_classname or '')"/>
2020-03-31 20:44:40,718 5200 INFO IVS_CRM odoo.addons.base.ir.ir_cron: Starting job `Mail: Fetchmail Service`.
2020-03-31 20:44:40,811 5200 INFO IVS_CRM odoo.addons.base.ir.ir_cron: Job `Mail: Fetchmail Service` done.
2020-03-31 20:46:49,545 5200 INFO IVS_CRM odoo.models.unlink: User #1 deleted ir.attachment records with IDs: [1044]
2020-03-31 20:46:50,530 5200 INFO IVS_CRM odoo.models.unlink: User #1 deleted ir.attachment records with IDs: [1045]
2020-03-31 20:46:50,967 5200 INFO IVS_CRM odoo.models.unlink: User #1 deleted ir.attachment records with IDs: [1046]
2020-03-31 20:46:51,045 5200 INFO IVS_CRM odoo.models.unlink: User #1 deleted ir.attachment records with IDs: [1047]
2020-03-31 20:46:51,076 5200 INFO IVS_CRM werkzeug: 127.0.0.1 - - [31/Mar/2020 20:46:51] "GET /web/login HTTP/1.1" 500 -
2020-03-31 20:46:51,092 5200 ERROR IVS_CRM werkzeug: Error on request:
Traceback (most recent call last):
  File "C:\Program Files (x86)\Odoo 11.0\python\lib\site-packages\werkzeug\serving.py", line 209, in run_wsgi
    execute(self.server.app)
  File "C:\Program Files (x86)\Odoo 11.0\python\lib\site-packages\werkzeug\serving.py", line 197, in execute
    application_iter = app(environ, start_response)
  File "C:\Program Files (x86)\Odoo 11.0\server\odoo\service\server.py", line 348, in app
    return self.app(e, s)
  File "C:\Program Files (x86)\Odoo 11.0\server\odoo\service\wsgi_server.py", line 166, in application
    return application_unproxied(environ, start_response)
  File "C:\Program Files (x86)\Odoo 11.0\server\odoo\service\wsgi_server.py", line 154, in application_unproxied
    result = handler(environ, start_response)
  File "C:\Program Files (x86)\Odoo 11.0\server\odoo\http.py", line 1321, in __call__
    return self.dispatch(environ, start_response)
  File "C:\Program Files (x86)\Odoo 11.0\server\odoo\http.py", line 1295, in __call__
    return self.app(environ, start_wrapped)
  File "C:\Program Files (x86)\Odoo 11.0\python\lib\site-packages\werkzeug\wsgi.py", line 600, in __call__
    return self.app(environ, start_response)
  File "C:\Program Files (x86)\Odoo 11.0\server\odoo\http.py", line 1493, in dispatch
    result = ir_http._dispatch()
  File "c:\program files (x86)\odoo 11.0\server\odoo\addons\auth_signup\models\ir_http.py", line 19, in _dispatch
    return super(Http, cls)._dispatch()
  File "c:\program files (x86)\odoo 11.0\server\odoo\addons\web_editor\models\ir_http.py", line 22, in _dispatch
    return super(IrHttp, cls)._dispatch()
  File "c:\program files (x86)\odoo 11.0\server\odoo\addons\http_routing\models\ir_http.py", line 396, in _dispatch
    result = super(IrHttp, cls)._dispatch()
  File "c:\program files (x86)\odoo 11.0\server\odoo\addons\utm\models\ir_http.py", line 26, in _dispatch
    response = super(IrHttp, cls)._dispatch()
  File "c:\program files (x86)\odoo 11.0\server\odoo\addons\base\ir\ir_http.py", line 212, in _dispatch
    return cls._handle_exception(e)
  File "c:\program files (x86)\odoo 11.0\server\odoo\addons\utm\models\ir_http.py", line 31, in _handle_exception
    response = super(IrHttp, cls)._handle_exception(exc)
  File "c:\program files (x86)\odoo 11.0\server\odoo\addons\base\ir\ir_http.py", line 182, in _handle_exception
    return request._handle_exception(exception)
  File "C:\Program Files (x86)\Odoo 11.0\server\odoo\http.py", line 773, in _handle_exception
    return super(HttpRequest, self)._handle_exception(exception)
  File "C:\Program Files (x86)\Odoo 11.0\server\odoo\http.py", line 312, in _handle_exception
    raise pycompat.reraise(type(exception), exception, sys.exc_info()[2])
  File "C:\Program Files (x86)\Odoo 11.0\server\odoo\tools\pycompat.py", line 87, in reraise
    raise value
  File "c:\program files (x86)\odoo 11.0\server\odoo\addons\base\ir\ir_http.py", line 208, in _dispatch
    result = request.dispatch()
  File "C:\Program Files (x86)\Odoo 11.0\server\odoo\http.py", line 832, in dispatch
    r = self._call_function(**self.params)
  File "C:\Program Files (x86)\Odoo 11.0\server\odoo\http.py", line 344, in _call_function
    return checked_call(self.db, *args, **kwargs)
  File "C:\Program Files (x86)\Odoo 11.0\server\odoo\service\model.py", line 97, in wrapper
    return f(dbname, *args, **kwargs)
  File "C:\Program Files (x86)\Odoo 11.0\server\odoo\http.py", line 340, in checked_call
    result.flatten()
  File "C:\Program Files (x86)\Odoo 11.0\server\odoo\http.py", line 1272, in flatten
    self.response.append(self.render())
  File "C:\Program Files (x86)\Odoo 11.0\server\odoo\http.py", line 1265, in render
    return env["ir.ui.view"].render_template(self.template, self.qcontext)
  File "c:\program files (x86)\odoo 11.0\server\odoo\addons\base\ir\ir_ui_view.py", line 1230, in render_template
    return self.browse(self.get_view_id(template)).render(values, engine)
  File "c:\program files (x86)\odoo 11.0\server\odoo\addons\web_editor\models\ir_ui_view.py", line 27, in render
    return super(IrUiView, self).render(values=values, engine=engine)
  File "c:\program files (x86)\odoo 11.0\server\odoo\addons\base\ir\ir_ui_view.py", line 1239, in render
    return self.env[engine].render(self.id, qcontext)
  File "c:\program files (x86)\odoo 11.0\server\odoo\addons\base\ir\ir_qweb\ir_qweb.py", line 57, in render
    return super(IrQWeb, self).render(id_or_xml_id, values=values, **context)
  File "c:\program files (x86)\odoo 11.0\server\odoo\addons\base\ir\ir_qweb\qweb.py", line 275, in render
    self.compile(template, options)(self, body.append, values or {})
  File "c:\program files (x86)\odoo 11.0\server\odoo\addons\base\ir\ir_qweb\qweb.py", line 348, in _compiled_fn
    raise e
  File "c:\program files (x86)\odoo 11.0\server\odoo\addons\base\ir\ir_qweb\qweb.py", line 346, in _compiled_fn
    return compiled(self, append, new, options, log)
  File "<template>", line 1, in template_161_38
    
  File "c:\program files (x86)\odoo 11.0\server\odoo\addons\base\ir\ir_qweb\qweb.py", line 348, in _compiled_fn
    raise e
  File "c:\program files (x86)\odoo 11.0\server\odoo\addons\base\ir\ir_qweb\qweb.py", line 346, in _compiled_fn
    return compiled(self, append, new, options, log)
  File "<template>", line 1, in template_web_login_layout_44
    
  File "c:\program files (x86)\odoo 11.0\server\odoo\addons\base\ir\ir_qweb\qweb.py", line 353, in _compiled_fn
    node = element.getroottree().xpath(path) if ':' not in path else None
odoo.addons.base.ir.ir_qweb.qweb.QWebException: unsupported operand type(s) for +: 'NoneType' and 'str'
Traceback (most recent call last):
  File "c:\program files (x86)\odoo 11.0\server\odoo\addons\base\ir\ir_qweb\qweb.py", line 346, in _compiled_fn
    return compiled(self, append, new, options, log)
  File "<template>", line 1, in template_web_layout_65
TypeError: unsupported operand type(s) for +: 'NoneType' and 'str'

Error to render compiling AST
TypeError: unsupported operand type(s) for +: 'NoneType' and 'str'
Template: web.layout
Path: /templates/t/t
Node: <t t-set="body_classname" t-value="lang_direction + ' ' + (body_classname or '')"/>
2020-03-31 20:46:51,154 5200 INFO IVS_CRM werkzeug: 127.0.0.1 - - [31/Mar/2020 20:46:51] "GET /favicon.ico HTTP/1.1" 404 -
2020-03-31 20:48:08,630 5200 INFO IVS_CRM odoo.models.unlink: User #1 deleted ir.attachment records with IDs: [1044]
2020-03-31 20:48:09,630 5200 INFO IVS_CRM odoo.models.unlink: User #1 deleted ir.attachment records with IDs: [1045]
2020-03-31 20:48:10,068 5200 INFO IVS_CRM odoo.models.unlink: User #1 deleted ir.attachment records with IDs: [1046]
2020-03-31 20:48:10,131 5200 INFO IVS_CRM odoo.models.unlink: User #1 deleted ir.attachment records with IDs: [1047]
2020-03-31 20:48:10,177 5200 INFO IVS_CRM werkzeug: 127.0.0.1 - - [31/Mar/2020 20:48:10] "GET /web/login HTTP/1.1" 500 -
2020-03-31 20:48:10,193 5200 ERROR IVS_CRM werkzeug: Error on request:
Traceback (most recent call last):
  File "C:\Program Files (x86)\Odoo 11.0\python\lib\site-packages\werkzeug\serving.py", line 209, in run_wsgi
    execute(self.server.app)
  File "C:\Program Files (x86)\Odoo 11.0\python\lib\site-packages\werkzeug\serving.py", line 197, in execute
    application_iter = app(environ, start_response)
  File "C:\Program Files (x86)\Odoo 11.0\server\odoo\service\server.py", line 348, in app
    return self.app(e, s)
  File "C:\Program Files (x86)\Odoo 11.0\server\odoo\service\wsgi_server.py", line 166, in application
    return application_unproxied(environ, start_response)
  File "C:\Program Files (x86)\Odoo 11.0\server\odoo\service\wsgi_server.py", line 154, in application_unproxied
    result = handler(environ, start_response)
  File "C:\Program Files (x86)\Odoo 11.0\server\odoo\http.py", line 1321, in __call__
    return self.dispatch(environ, start_response)
  File "C:\Program Files (x86)\Odoo 11.0\server\odoo\http.py", line 1295, in __call__
    return self.app(environ, start_wrapped)
  File "C:\Program Files (x86)\Odoo 11.0\python\lib\site-packages\werkzeug\wsgi.py", line 600, in __call__
    return self.app(environ, start_response)
  File "C:\Program Files (x86)\Odoo 11.0\server\odoo\http.py", line 1493, in dispatch
    result = ir_http._dispatch()
  File "c:\program files (x86)\odoo 11.0\server\odoo\addons\auth_signup\models\ir_http.py", line 19, in _dispatch
    return super(Http, cls)._dispatch()
  File "c:\program files (x86)\odoo 11.0\server\odoo\addons\web_editor\models\ir_http.py", line 22, in _dispatch
    return super(IrHttp, cls)._dispatch()
  File "c:\program files (x86)\odoo 11.0\server\odoo\addons\http_routing\models\ir_http.py", line 396, in _dispatch
    result = super(IrHttp, cls)._dispatch()
  File "c:\program files (x86)\odoo 11.0\server\odoo\addons\utm\models\ir_http.py", line 26, in _dispatch
    response = super(IrHttp, cls)._dispatch()
  File "c:\program files (x86)\odoo 11.0\server\odoo\addons\base\ir\ir_http.py", line 212, in _dispatch
    return cls._handle_exception(e)
  File "c:\program files (x86)\odoo 11.0\server\odoo\addons\utm\models\ir_http.py", line 31, in _handle_exception
    response = super(IrHttp, cls)._handle_exception(exc)
  File "c:\program files (x86)\odoo 11.0\server\odoo\addons\base\ir\ir_http.py", line 182, in _handle_exception
    return request._handle_exception(exception)
  File "C:\Program Files (x86)\Odoo 11.0\server\odoo\http.py", line 773, in _handle_exception
    return super(HttpRequest, self)._handle_exception(exception)
  File "C:\Program Files (x86)\Odoo 11.0\server\odoo\http.py", line 312, in _handle_exception
    raise pycompat.reraise(type(exception), exception, sys.exc_info()[2])
  File "C:\Program Files (x86)\Odoo 11.0\server\odoo\tools\pycompat.py", line 87, in reraise
    raise value
  File "c:\program files (x86)\odoo 11.0\server\odoo\addons\base\ir\ir_http.py", line 208, in _dispatch
    result = request.dispatch()
  File "C:\Program Files (x86)\Odoo 11.0\server\odoo\http.py", line 832, in dispatch
    r = self._call_function(**self.params)
  File "C:\Program Files (x86)\Odoo 11.0\server\odoo\http.py", line 344, in _call_function
    return checked_call(self.db, *args, **kwargs)
  File "C:\Program Files (x86)\Odoo 11.0\server\odoo\service\model.py", line 97, in wrapper
    return f(dbname, *args, **kwargs)
  File "C:\Program Files (x86)\Odoo 11.0\server\odoo\http.py", line 340, in checked_call
    result.flatten()
  File "C:\Program Files (x86)\Odoo 11.0\server\odoo\http.py", line 1272, in flatten
    self.response.append(self.render())
  File "C:\Program Files (x86)\Odoo 11.0\server\odoo\http.py", line 1265, in render
    return env["ir.ui.view"].render_template(self.template, self.qcontext)
  File "c:\program files (x86)\odoo 11.0\server\odoo\addons\base\ir\ir_ui_view.py", line 1230, in render_template
    return self.browse(self.get_view_id(template)).render(values, engine)
  File "c:\program files (x86)\odoo 11.0\server\odoo\addons\web_editor\models\ir_ui_view.py", line 27, in render
    return super(IrUiView, self).render(values=values, engine=engine)
  File "c:\program files (x86)\odoo 11.0\server\odoo\addons\base\ir\ir_ui_view.py", line 1239, in render
    return self.env[engine].render(self.id, qcontext)
  File "c:\program files (x86)\odoo 11.0\server\odoo\addons\base\ir\ir_qweb\ir_qweb.py", line 57, in render
    return super(IrQWeb, self).render(id_or_xml_id, values=values, **context)
  File "c:\program files (x86)\odoo 11.0\server\odoo\addons\base\ir\ir_qweb\qweb.py", line 275, in render
    self.compile(template, options)(self, body.append, values or {})
  File "c:\program files (x86)\odoo 11.0\server\odoo\addons\base\ir\ir_qweb\qweb.py", line 348, in _compiled_fn
    raise e
  File "c:\program files (x86)\odoo 11.0\server\odoo\addons\base\ir\ir_qweb\qweb.py", line 346, in _compiled_fn
    return compiled(self, append, new, options, log)
  File "<template>", line 1, in template_161_71
    
  File "c:\program files (x86)\odoo 11.0\server\odoo\addons\base\ir\ir_qweb\qweb.py", line 348, in _compiled_fn
    raise e
  File "c:\program files (x86)\odoo 11.0\server\odoo\addons\base\ir\ir_qweb\qweb.py", line 346, in _compiled_fn
    return compiled(self, append, new, options, log)
  File "<template>", line 1, in template_web_login_layout_77
    
  File "c:\program files (x86)\odoo 11.0\server\odoo\addons\base\ir\ir_qweb\qweb.py", line 353, in _compiled_fn
    node = element.getroottree().xpath(path) if ':' not in path else None
odoo.addons.base.ir.ir_qweb.qweb.QWebException: unsupported operand type(s) for +: 'NoneType' and 'str'
Traceback (most recent call last):
  File "c:\program files (x86)\odoo 11.0\server\odoo\addons\base\ir\ir_qweb\qweb.py", line 346, in _compiled_fn
    return compiled(self, append, new, options, log)
  File "<template>", line 1, in template_web_layout_98
TypeError: unsupported operand type(s) for +: 'NoneType' and 'str'

Error to render compiling AST
TypeError: unsupported operand type(s) for +: 'NoneType' and 'str'
Template: web.layout
Path: /templates/t/t
Node: <t t-set="body_classname" t-value="lang_direction + ' ' + (body_classname or '')"/>
2020-03-31 20:48:10,208 5200 INFO IVS_CRM werkzeug: 127.0.0.1 - - [31/Mar/2020 20:48:10] "GET /favicon.ico HTTP/1.1" 404 -
2020-03-31 20:48:44,861 5200 INFO IVS_CRM odoo.addons.base.ir.ir_cron: Starting job `Mail: Fetchmail Service`.
2020-03-31 20:48:44,892 5200 INFO IVS_CRM odoo.addons.base.ir.ir_cron: Job `Mail: Fetchmail Service` done.
2020-03-31 20:55:48,056 5200 INFO IVS_CRM odoo.addons.base.ir.ir_cron: Starting job `Calendar: Event Reminder`.
2020-03-31 20:55:48,086 5200 INFO IVS_CRM odoo.modules.registry: At least one model cache has been invalidated, signaling through the database.
2020-03-31 20:55:48,102 5200 INFO IVS_CRM odoo.addons.base.ir.ir_cron: Job `Calendar: Event Reminder` done.
2020-03-31 20:55:48,102 5200 INFO IVS_CRM odoo.addons.base.ir.ir_cron: Starting job `Mail: Fetchmail Service`.
2020-03-31 20:55:48,102 5200 INFO IVS_CRM odoo.addons.base.ir.ir_cron: Job `Mail: Fetchmail Service` done.