When you want to access the CRM module, the system returns the following errors

Error:


Rastreo de error:
Error: can't access property "kanban", fieldsViews is undefined
_generateActionViews/_.forEach@http://crm.ms.com.ar:8069/web/content/11259-624b574/web.assets_common.js:108:566
_generateActionViews@http://crm.ms.com.ar:8069/web/content/11260-6cec67a/web.assets_backend.js:447:229
_executeWindowAction/

=======================

Odoo Server Error

Traceback (most recent call last):
File "C:\Program Files (x86)\Odoo 13.0\server\odoo\http.py", line 624, in _handle_exception
return super(JsonRequest, self)._handle_exception(exception)
File "C:\Program Files (x86)\Odoo 13.0\server\odoo\http.py", line 310, in _handle_exception
raise pycompat.reraise(type(exception), exception, sys.exc_info()[2])
File "C:\Program Files (x86)\Odoo 13.0\server\odoo\tools\pycompat.py", line 14, in reraise
raise value
File "C:\Program Files (x86)\Odoo 13.0\server\odoo\http.py", line 669, in dispatch
result = self._call_function(**self.params)
File "C:\Program Files (x86)\Odoo 13.0\server\odoo\http.py", line 350, in _call_function
return checked_call(self.db, *args, **kwargs)
File "C:\Program Files (x86)\Odoo 13.0\server\odoo\service\model.py", line 94, in wrapper
return f(dbname, *args, **kwargs)
File "C:\Program Files (x86)\Odoo 13.0\server\odoo\http.py", line 339, in checked_call
result = self.endpoint(*a, **kw)
File "C:\Program Files (x86)\Odoo 13.0\server\odoo\http.py", line 915, in __call__
return self.method(*args, **kw)
File "C:\Program Files (x86)\Odoo 13.0\server\odoo\http.py", line 515, in response_wrap
response = f(*args, **kw)
File "C:\Program Files (x86)\Odoo 13.0\server\odoo\addons\web\controllers\main.py", line 1339, in call_kw
return self._call_kw(model, method, args, kwargs)
File "C:\Program Files (x86)\Odoo 13.0\server\odoo\addons\web\controllers\main.py", line 1331, in _call_kw
return call_kw(request.env[model], method, args, kwargs)
File "C:\Program Files (x86)\Odoo 13.0\server\odoo\api.py", line 383, in call_kw
result = _call_kw_model(method, model, args, kwargs)
File "C:\Program Files (x86)\Odoo 13.0\server\odoo\api.py", line 356, in _call_kw_model
result = method(recs, *args, **kwargs)
File "C:\Program Files (x86)\Odoo 13.0\server\odoo\models.py", line 1471, in load_views
for [v_id, v_type] in views
File "C:\Program Files (x86)\Odoo 13.0\server\odoo\models.py", line 1471, in
for [v_id, v_type] in views
File "C:\Program Files (x86)\Odoo 13.0\server\odoo\addons\mail\models\mail_thread.py", line 411, in fields_view_get
res = super(MailThread, self).fields_view_get(view_id=view_id, view_type=view_type, toolbar=toolbar, submenu=submenu)
File "C:\Program Files (x86)\Odoo 13.0\server\odoo\addons\web\models\models.py", line 206, in fields_view_get
r = super().fields_view_get(view_id, view_type, toolbar, submenu)
File "C:\Program Files (x86)\Odoo 13.0\server\odoo\models.py", line 1558, in fields_view_get
xarch, xfields = View.postprocess_and_fields(self._name, etree.fromstring(result['arch']), view_id)
File "C:\Program Files (x86)\Odoo 13.0\server\odoo\addons\base\models\ir_ui_view.py", line 994, in postprocess_and_fields
self.raise_view_error(message, view_id)
File "C:\Program Files (x86)\Odoo 13.0\server\odoo\addons\base\models\ir_ui_view.py", line 614, in raise_view_error
raise ValueError(message)
ValueError: El campo `quotation_count` no existe

Contexto del error:
Vista `n/a`
[view_id: n/a, xml_id: n/a, model: n/a, parent_id: n/a]

this error started after clients with blank fields were deleted