Bei der Anmeldung am Admin-Web wird nur eine rote leere Fehlermeldung angezeigt.

Dadurch kann ich mich nicht mehr am Admin-Web anmelden.
Im systemd-Journal taucht zu dem Zeitpunkt dieser Fehler auf:
Mar 21 14:28:08 exchange uwsgi[1237]: [ERROR] (flask.app) Traceback (most recent call last):
Mar 21 14:28:08 exchange uwsgi[1237]: File "/usr/lib/python3.6/site-packages/flask/app.py", line 1813, in full_dispatch_request
Mar 21 14:28:08 exchange uwsgi[1237]: rv = self.dispatch_request()
Mar 21 14:28:08 exchange uwsgi[1237]: File "/usr/lib/python3.6/site-packages/flask/app.py", line 1799, in dispatch_request
Mar 21 14:28:08 exchange uwsgi[1237]: return self.view_functions[rule.endpoint](**req.view_args)
Mar 21 14:28:08 exchange uwsgi[1237]: File "./api/core.py", line 138, in wrapper
Mar 21 14:28:08 exchange uwsgi[1237]: return call()
Mar 21 14:28:08 exchange uwsgi[1237]: File "./api/core.py", line 104, in call
Mar 21 14:28:08 exchange uwsgi[1237]: ret = func(*args, **kwargs)
Mar 21 14:28:08 exchange uwsgi[1237]: File "./endpoints/misc.py", line 44, in login
Mar 21 14:28:08 exchange uwsgi[1237]: success, val = loginUser(request.form["user"], request.form["pass"])
Mar 21 14:28:08 exchange uwsgi[1237]: File "./api/security.py", line 170, in loginUser
Mar 21 14:28:08 exchange uwsgi[1237]: user: Users = Users.query.filter(Users.username == username).first()
Mar 21 14:28:08 exchange uwsgi[1237]: File "./orm/__init__.py", line 31, in __get__
Mar 21 14:28:08 exchange uwsgi[1237]: mapper = class_mapper(type)
Mar 21 14:28:08 exchange uwsgi[1237]: File "/usr/lib64/python3.6/site-packages/sqlalchemy/orm/base.py", line 451, in class_mapper
Mar 21 14:28:08 exchange uwsgi[1237]: mapper = _inspect_mapped_class(class_, configure=configure)
Mar 21 14:28:08 exchange uwsgi[1237]: File "/usr/lib64/python3.6/site-packages/sqlalchemy/orm/base.py", line 430, in _inspect_mapped_class
Mar 21 14:28:08 exchange uwsgi[1237]: mapper._configure_all()
Mar 21 14:28:08 exchange uwsgi[1237]: File "/usr/lib64/python3.6/site-packages/sqlalchemy/orm/mapper.py", line 1352, in _configure_all
Mar 21 14:28:08 exchange uwsgi[1237]: configure_mappers()
Mar 21 14:28:08 exchange uwsgi[1237]: File "/usr/lib64/python3.6/site-packages/sqlalchemy/orm/mapper.py", line 3295, in configure_mappers
Mar 21 14:28:08 exchange uwsgi[1237]: raise e
Mar 21 14:28:08 exchange uwsgi[1237]: sqlalchemy.exc.InvalidRequestError: One or more mappers failed to initialize - can't proceed with initialization of other mappers. Triggering mapper: 'mapped class Users->users'. Original exception was: When initializing mapper mapped class Users->users, expression 'Users.domainID == Domains.ID' failed to locate a name ("name 'Domains' is not defined"). If this is a class name, consider adding this relationship() to the <class 'orm.users.Users'> class after both dependent classes have been defined.
Mar 21 14:28:08 exchange uwsgi[1237]: [WARNING] (flask.app) POST /api/v1/login? from 10.0.2.202 -> 500 '{"message":"The server encountered an error while processing the request."}\n'
Neustarten kann ich erst heute Abend. Der Server ist gerade in Produktion gegangen.
exchange:~ # rpm -qi grommunio-admin-api | head -4
Name : grommunio-admin-api
Version : 1.6.13.3b5ce37
Release : lp153.94.1
Architecture: noarch
Hat jemand eine Idee für mich?
Danke
Ulf