I get the following error when i click on the "finance" tab and "inventory" tab.

Error in "Finance" Tab and "Inventory" Tab on a fresh installed Odoo 9.0c.20151225 under Ubuntu 14.04.3 LTS

Traceback (most recent call last):
  File "/usr/lib/python2.7/dist-packages/openerp/http.py", line 643, in _handle_exception
    return super(JsonRequest, self)._handle_exception(exception)
  File "/usr/lib/python2.7/dist-packages/openerp/http.py", line 680, in dispatch
    result = self._call_function(**self.params)
  File "/usr/lib/python2.7/dist-packages/openerp/http.py", line 316, in _call_function
    return checked_call(self.db, *args, **kwargs)
  File "/usr/lib/python2.7/dist-packages/openerp/service/model.py", line 118, in wrapper
    return f(dbname, *args, **kwargs)
  File "/usr/lib/python2.7/dist-packages/openerp/http.py", line 309, in checked_call
    result = self.endpoint(*a, **kw)
  File "/usr/lib/python2.7/dist-packages/openerp/http.py", line 959, in __call__
    return self.method(*args, **kw)
  File "/usr/lib/python2.7/dist-packages/openerp/http.py", line 509, in response_wrap
    response = f(*args, **kw)
  File "/usr/lib/python2.7/dist-packages/openerp/addons/web/controllers/main.py", line 892, in call_kw
    return self._call_kw(model, method, args, kwargs)
  File "/usr/lib/python2.7/dist-packages/openerp/addons/web/controllers/main.py", line 884, in _call_kw
    return getattr(request.registry.get(model), method)(request.cr, request.uid, *args, **kwargs)
  File "/usr/lib/python2.7/dist-packages/openerp/api.py", line 238, in wrapper
    return old_api(self, *args, **kwargs)
  File "/usr/lib/python2.7/dist-packages/openerp/api.py", line 342, in old_api
    result = method(recs, *args, **kwargs)
  File "/usr/lib/python2.7/dist-packages/openerp/addons/web_planner/models/web_planner.py", line 45, in render
    return self.env['ir.ui.view'].browse(template_id).render(values=values)
  File "/usr/lib/python2.7/dist-packages/openerp/api.py", line 236, in wrapper
    return new_api(self, *args, **kwargs)
  File "/usr/lib/python2.7/dist-packages/openerp/api.py", line 562, in new_api
    result = method(self._model, cr, uid, self.ids, *args, **old_kwargs)
  File "/usr/lib/python2.7/dist-packages/openerp/addons/web_editor/models/ir_ui_view.py", line 29, in render
    return super(view, self).render(cr, uid, id_or_xml_id, values=values, engine=engine, context=context)
  File "/usr/lib/python2.7/dist-packages/openerp/api.py", line 238, in wrapper
    return old_api(self, *args, **kwargs)
  File "/usr/lib/python2.7/dist-packages/openerp/addons/base/ir/ir_ui_view.py", line 1065, in render
    return self.pool[engine].render(cr, uid, id_or_xml_id, qcontext, loader=loader, context=context)
  File "/usr/lib/python2.7/dist-packages/openerp/api.py", line 238, in wrapper
    return old_api(self, *args, **kwargs)
  File "/usr/lib/python2.7/dist-packages/openerp/addons/base/ir/ir_qweb.py", line 252, in render
    element = self.get_template(id_or_xml_id, qwebcontext)
  File "/usr/lib/python2.7/dist-packages/openerp/addons/base/ir/ir_qweb.py", line 172, in get_template
    document = qwebcontext.loader(name)
  File "/usr/lib/python2.7/dist-packages/openerp/addons/base/ir/ir_ui_view.py", line 1063, in loader
    return self.read_template(cr, uid, name, context=context)
  File "/usr/lib/python2.7/dist-packages/openerp/api.py", line 238, in wrapper
    return old_api(self, *args, **kwargs)
  File "/usr/lib/python2.7/dist-packages/openerp/addons/base/ir/ir_ui_view.py", line 938, in read_template
    return self._read_template(cr, uid, view_id, context=context)
  File "/usr/lib/python2.7/dist-packages/openerp/api.py", line 238, in wrapper
    return old_api(self, *args, **kwargs)
  File "<string>", line 2, in _read_template
  File "/usr/lib/python2.7/dist-packages/openerp/tools/cache.py", line 85, in lookup
    value = d[key] = self.method(*args, **kwargs)
  File "/usr/lib/python2.7/dist-packages/openerp/addons/base/ir/ir_ui_view.py", line 923, in _read_template
    arch = self.read_combined(cr, uid, view_id, fields=['arch'], context=context)['arch']
  File "/usr/lib/python2.7/dist-packages/openerp/api.py", line 238, in wrapper
    return old_api(self, *args, **kwargs)
  File "/usr/lib/python2.7/dist-packages/openerp/addons/base/ir/ir_ui_view.py", line 635, in read_combined
    view_arch = etree.fromstring(view['arch'].encode('utf-8'))
  File "lxml.etree.pyx", line 3032, in lxml.etree.fromstring (src/lxml/lxml.etree.c:68106)
  File "parser.pxi", line 1785, in lxml.etree._parseMemoryDocument (src/lxml/lxml.etree.c:102455)
  File "parser.pxi", line 1673, in lxml.etree._parseDoc (src/lxml/lxml.etree.c:101284)
  File "parser.pxi", line 1074, in lxml.etree._BaseParser._parseDoc (src/lxml/lxml.etree.c:96466)
  File "parser.pxi", line 582, in lxml.etree._ParserContext._handleParseResultDoc (src/lxml/lxml.etree.c:91275)
  File "parser.pxi", line 683, in lxml.etree._handleParseResult (src/lxml/lxml.etree.c:92461)
  File "parser.pxi", line 622, in lxml.etree._raiseParseError (src/lxml/lxml.etree.c:91757)
XMLSyntaxError: <unprintable XMLSyntaxError object>