Die Länder Deutschland, Frankreich etc, können wir nicht erfassen im Odoo 12.
Wir erhalten eine Fehlermeldung

Es fehlen bei allen Kunden die "Länder" in der Kundenerfassung,
Ebenfalls die Zahlungsbedingungen, Freihausgrenze,  Auslieferungsmethode

Die Daten waren alle im Odoo 11 vorhanden

Fehler:
Odoo Server Error

Traceback (most recent call last):
  File "/usr/lib/python3/dist-packages/odoo/http.py", line 654, in _handle_exception
    return super(JsonRequest, self)._handle_exception(exception)
  File "/usr/lib/python3/dist-packages/odoo/http.py", line 312, in _handle_exception
    raise pycompat.reraise(type(exception), exception, sys.exc_info()[2])
  File "/usr/lib/python3/dist-packages/odoo/tools/pycompat.py", line 87, in reraise
    raise value
  File "/usr/lib/python3/dist-packages/odoo/http.py", line 696, in dispatch
    result = self._call_function(**self.params)
  File "/usr/lib/python3/dist-packages/odoo/http.py", line 344, in _call_function
    return checked_call(self.db, *args, **kwargs)
  File "/usr/lib/python3/dist-packages/odoo/service/model.py", line 97, in wrapper
    return f(dbname, *args, **kwargs)
  File "/usr/lib/python3/dist-packages/odoo/http.py", line 337, in checked_call
    result = self.endpoint(*a, **kw)
  File "/usr/lib/python3/dist-packages/odoo/http.py", line 939, in __call__
    return self.method(*args, **kw)
  File "/usr/lib/python3/dist-packages/odoo/http.py", line 517, in response_wrap
    response = f(*args, **kw)
  File "/usr/lib/python3/dist-packages/odoo/addons/web/controllers/main.py", line 962, in call_kw
    return self._call_kw(model, method, args, kwargs)
  File "/usr/lib/python3/dist-packages/odoo/addons/web/controllers/main.py", line 954, in _call_kw
    return call_kw(request.env[model], method, args, kwargs)
  File "/usr/lib/python3/dist-packages/odoo/api.py", line 749, in call_kw
    return _call_kw_multi(method, model, args, kwargs)
  File "/usr/lib/python3/dist-packages/odoo/api.py", line 736, in _call_kw_multi
    result = method(recs, *args, **kwargs)
  File "/usr/lib/python3/dist-packages/odoo/models.py", line 5394, in onchange
    record = self.new(values)
  File "/usr/lib/python3/dist-packages/odoo/models.py", line 4869, in new
    record._cache.update(record._convert_to_cache(values, update=True))
  File "/usr/lib/python3/dist-packages/odoo/models.py", line 4742, in _convert_to_cache
    for name, value in values.items()
  File "/usr/lib/python3/dist-packages/odoo/models.py", line 4743, in <dictcomp>
    if name in fields
  File "/usr/lib/python3/dist-packages/odoo/fields.py", line 1953, in convert_to_cache
    raise ValueError("Wrong value for %s: %r" % (self, value))
ValueError: Wrong value for res.partner.lang: 'de_DE'