Odoo Server Error 

hello This error appears when I press the payment button. I do not know why....could someone give me some advice!

I thank you in advance!

excuse my ugly english.

 

Traceback (most recent call last):
File "C:\Program Files (x86)\Odoo 11.0\server\odoo\http.py", line 653, in _handle_exception
return super(JsonRequest, 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\http.py", line 695, in dispatch
result = 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 337, in checked_call
result = self.endpoint(*a, **kw)
File "C:\Program Files (x86)\Odoo 11.0\server\odoo\http.py", line 939, in __call__
return self.method(*args, **kw)
File "C:\Program Files (x86)\Odoo 11.0\server\odoo\http.py", line 517, in response_wrap
response = f(*args, **kw)
File "c:\program files (x86)\odoo 11.0\server\odoo\addons\web\controllers\main.py", line 934, in call_kw
return self._call_kw(model, method, args, kwargs)
File "c:\program files (x86)\odoo 11.0\server\odoo\addons\web\controllers\main.py", line 926, in _call_kw
return call_kw(request.env[model], method, args, kwargs)
File "C:\Program Files (x86)\Odoo 11.0\server\odoo\api.py", line 687, in call_kw
return call_kw_model(method, model, args, kwargs)
File "C:\Program Files (x86)\Odoo 11.0\server\odoo\api.py", line 672, in call_kw_model
result = method(recs, *args, **kwargs)
File "C:\Program Files (x86)\Odoo 11.0\server\odoo\models.py", line 1296, in load_views
for [v_id, v_type] in views
File "C:\Program Files (x86)\Odoo 11.0\server\odoo\models.py", line 1296, in <dictcomp>
for [v_id, v_type] in views
File "c:\program files (x86)\odoo 11.0\server\odoo\addons\mail\models\mail_thread.py", line 374, 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 11.0\server\odoo\models.py", line 1382, in fields_view_get
xarch, xfields = View.postprocess_and_fields(self._name, etree.fromstring(result['arch']), view_id)
File "c:\program files (x86)\odoo 11.0\server\odoo\addons\base\ir\ir_ui_view.py", line 1064, in postprocess_and_fields
self.raise_view_error(message, view_id)
File "c:\program files (x86)\odoo 11.0\server\odoo\addons\base\ir\ir_ui_view.py", line 519, in raise_view_error
raise ValueError(message)
ValueError: El campo `effective_date` no existe

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