Odoo Server Error
Traceback (most recent call last):
  File "/opt/odoo/odoo-server/odoo/tools/cache.py", line 88, in lookup
    r = d[key]
  File "/opt/odoo/odoo-server/odoo/tools/func.py", line 69, in wrapper
    return func(self, *args, **kwargs)
  File "/opt/odoo/odoo-server/odoo/tools/lru.py", line 44, in __getitem__
    a = self.d[obj].me
KeyError: ('ir.qweb', <function IrQWeb.compile at 0x7f67dfbd3ea0>, '', ('en_US', False, None, None, None, None))

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "/opt/odoo/odoo-server/odoo/tools/cache.py", line 88, in lookup
    r = d[key]
  File "/opt/odoo/odoo-server/odoo/tools/func.py", line 69, in wrapper
    return func(self, *args, **kwargs)
  File "/opt/odoo/odoo-server/odoo/tools/lru.py", line 44, in __getitem__
    a = self.d[obj].me
KeyError: ('ir.ui.view', <function View.get_view_id at 0x7f67cf62b488>, 2, '', (None,))

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "/opt/odoo/odoo-server/odoo/addons/base/models/qweb.py", line 372, in get_template
    document = options.get('load', self.load)(template, options)
  File "/opt/odoo/odoo-server/odoo/addons/base/models/ir_qweb.py", line 122, in load
    template = env['ir.ui.view'].read_template(name)
  File "/opt/odoo/odoo-server/odoo/addons/base/models/ir_ui_view.py", line 1174, in read_template
    return self._read_template(self.get_view_id(xml_id))
  File "<decorator-gen-224>", line 2, in get_view_id
  File "/opt/odoo/odoo-server/odoo/tools/cache.py", line 93, in lookup
    value = d[key] = self.method(*args, **kwargs)
  File "/opt/odoo/odoo-server/addons/website/models/ir_ui_view.py", line 285, in get_view_id
    return super(View, self).get_view_id(xml_id)
  File "/opt/odoo/odoo-server/odoo/addons/base/models/ir_ui_view.py", line 1188, in get_view_id
    raise ValueError('Invalid template id: %r' % template)
ValueError: Invalid template id: ''

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "/opt/odoo/odoo-server/addons/web/controllers/main.py", line 1675, in report_download
    response = self.report_routes(reportname, converter=converter, **dict(data))
  File "/opt/odoo/odoo-server/odoo/http.py", line 517, in response_wrap
    response = f(*args, **kw)
  File "/opt/odoo/vertax_addons/report_xlsx/controllers/main.py", line 50, in report_routes
    reportname, docids, converter, **data
  File "/opt/odoo/odoo-server/odoo/http.py", line 517, in response_wrap
    response = f(*args, **kw)
  File "/opt/odoo/odoo-server/addons/web/controllers/main.py", line 1612, in report_routes
    pdf = report.with_context(context).render_qweb_pdf(docids, data=data)[0]
  File "/opt/odoo/vertax_addons/mis_builder/report/mis_report_instance_qweb.py", line 30, in render_qweb_pdf
    render_qweb_pdf(res_ids, data)
  File "/opt/odoo/odoo-server/odoo/addons/base/models/ir_actions_report.py", line 711, in render_qweb_pdf
    html = self.with_context(context).render_qweb_html(res_ids, data=data)[0]
  File "/opt/odoo/odoo-server/odoo/addons/base/models/ir_actions_report.py", line 751, in render_qweb_html
    return self.render_template(self.report_name, data), 'html'
  File "/opt/odoo/odoo-server/odoo/addons/base/models/ir_actions_report.py", line 534, in render_template
    return view_obj.render_template(template, values)
  File "/opt/odoo/odoo-server/odoo/addons/base/models/ir_ui_view.py", line 1284, in render_template
    return self.browse(self.get_view_id(template)).render(values, engine)
  File "/opt/odoo/odoo-server/addons/website/models/ir_ui_view.py", line 319, in render
    return super(View, self).render(values, engine=engine, minimal_qcontext=minimal_qcontext)
  File "/opt/odoo/odoo-server/addons/web_editor/models/ir_ui_view.py", line 27, in render
    return super(IrUiView, self).render(values=values, engine=engine, minimal_qcontext=minimal_qcontext)
  File "/opt/odoo/odoo-server/odoo/addons/base/models/ir_ui_view.py", line 1293, in render
    return self.env[engine].render(self.id, qcontext)
  File "/opt/odoo/odoo-server/odoo/addons/base/models/ir_qweb.py", line 59, in render
    result = super(IrQWeb, self).render(id_or_xml_id, values=values, **context)
  File "/opt/odoo/odoo-server/odoo/addons/base/models/qweb.py", line 274, in render
    self.compile(template, options)(self, body.append, values or {})
  File "/opt/odoo/odoo-server/odoo/addons/base/models/qweb.py", line 348, in _compiled_fn
    raise e
  File "/opt/odoo/odoo-server/odoo/addons/base/models/qweb.py", line 346, in _compiled_fn
    return compiled(self, append, new, options, log)
  File "<template>", line 1, in template_2702_475
  File "<template>", line 2, in body_call_content_474
  File "/opt/odoo/odoo-server/odoo/addons/base/models/qweb.py", line 348, in _compiled_fn
    raise e
  File "/opt/odoo/odoo-server/odoo/addons/base/models/qweb.py", line 346, in _compiled_fn
    return compiled(self, append, new, options, log)
  File "<template>", line 1, in template_web_external_layout_481
  File "<decorator-gen-54>", line 2, in compile
  File "/opt/odoo/odoo-server/odoo/tools/cache.py", line 93, in lookup
    value = d[key] = self.method(*args, **kwargs)
  File "/opt/odoo/odoo-server/odoo/addons/base/models/ir_qweb.py", line 114, in compile
    return super(IrQWeb, self).compile(id_or_xml_id, options=options)
  File "/opt/odoo/odoo-server/odoo/addons/base/models/qweb.py", line 291, in compile
    element, document = self.get_template(template, options)
  File "/opt/odoo/odoo-server/odoo/addons/base/models/qweb.py", line 376, in get_template
    raise QWebException("load could not load template", name=template)
odoo.addons.base.models.qweb.QWebException: None
Traceback (most recent call last):
  File "/opt/odoo/odoo-server/odoo/tools/cache.py", line 88, in lookup
    r = d[key]
  File "/opt/odoo/odoo-server/odoo/tools/func.py", line 69, in wrapper
    return func(self, *args, **kwargs)
  File "/opt/odoo/odoo-server/odoo/tools/lru.py", line 44, in __getitem__
    a = self.d[obj].me
KeyError: ('ir.qweb', <function IrQWeb.compile at 0x7f67dfbd3ea0>, '', ('en_US', False, None, None, None, None))

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "/opt/odoo/odoo-server/odoo/tools/cache.py", line 88, in lookup
    r = d[key]
  File "/opt/odoo/odoo-server/odoo/tools/func.py", line 69, in wrapper
    return func(self, *args, **kwargs)
  File "/opt/odoo/odoo-server/odoo/tools/lru.py", line 44, in __getitem__
    a = self.d[obj].me
KeyError: ('ir.ui.view', <function View.get_view_id at 0x7f67cf62b488>, 2, '', (None,))

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "/opt/odoo/odoo-server/odoo/addons/base/models/qweb.py", line 372, in get_template
    document = options.get('load', self.load)(template, options)
  File "/opt/odoo/odoo-server/odoo/addons/base/models/ir_qweb.py", line 122, in load
    template = env['ir.ui.view'].read_template(name)
  File "/opt/odoo/odoo-server/odoo/addons/base/models/ir_ui_view.py", line 1174, in read_template
    return self._read_template(self.get_view_id(xml_id))
  File "<decorator-gen-224>", line 2, in get_view_id
  File "/opt/odoo/odoo-server/odoo/tools/cache.py", line 93, in lookup
    value = d[key] = self.method(*args, **kwargs)
  File "/opt/odoo/odoo-server/addons/website/models/ir_ui_view.py", line 285, in get_view_id
    return super(View, self).get_view_id(xml_id)
  File "/opt/odoo/odoo-server/odoo/addons/base/models/ir_ui_view.py", line 1188, in get_view_id
    raise ValueError('Invalid template id: %r' % template)
ValueError: Invalid template id: ''

load could not load template