Hi!
Odoo : v11
Lang : en, ru
If you get an error using Russian, who knows how to fix it?

Error: 

Traceback (most recent call last):
  File "/opt/odoo/odoo/odoo/http.py", line 653, in _handle_exception
    return super(JsonRequest, self)._handle_exception(exception)
  File "/opt/odoo/odoo/odoo/http.py", line 312, in _handle_exception
    raise pycompat.reraise(type(exception), exception, sys.exc_info()[2])
  File "/opt/odoo/odoo/odoo/tools/pycompat.py", line 87, in reraise
    raise value
  File "/opt/odoo/odoo/odoo/http.py", line 695, in dispatch
    result = self._call_function(**self.params)
  File "/opt/odoo/odoo/odoo/http.py", line 344, in _call_function
    return checked_call(self.db, *args, **kwargs)
  File "/opt/odoo/odoo/odoo/service/model.py", line 97, in wrapper
    return f(dbname, *args, **kwargs)
  File "/opt/odoo/odoo/odoo/http.py", line 337, in checked_call
    result = self.endpoint(*a, **kw)
  File "/opt/odoo/odoo/odoo/http.py", line 939, in __call__
    return self.method(*args, **kw)
  File "/opt/odoo/odoo/odoo/http.py", line 517, in response_wrap
    response = f(*args, **kw)
  File "/opt/odoo/odoo/addons/web/controllers/main.py", line 934, in call_kw
    return self._call_kw(model, method, args, kwargs)
  File "/opt/odoo/odoo/addons/web/controllers/main.py", line 926, in _call_kw
    return call_kw(request.env[model], method, args, kwargs)
  File "/opt/odoo/odoo/odoo/api.py", line 697, in call_kw
    return call_kw_model(method, model, args, kwargs)
  File "/opt/odoo/odoo/odoo/api.py", line 682, in call_kw_model
    result = method(recs, *args, **kwargs)
  File "/opt/odoo/odoo/addons/calendar/wizard/mail_invite.py", line 19, in default_get
    result = super(MailInvite, self).default_get(fields)
  File "/opt/odoo/odoo/addons/mail/wizard/invite.py", line 33, in default_get
    text = msg_fmt % locals()
ValueError: unsupported format character '(' (0x28) at index 2