Upgrade to UCS dashboard 2.1 fails with no access

I have upgraded to version 5 and my kopano wiki, owncloud work fine but I am not able to login into the portal.
The upgrade fails with following:
Starting univention-upgrade. Current UCS version is 5.0-0 errata195

Checking for local repository: none
Checking for package updates: none
Checking for app updates: found

The following apps can be upgraded:

UCS Dashboard: Version 2.0 can be upgraded to 2.1
BlueSpice MediaWiki: Version 3.2.6-ucs.1 can be upgraded to 3.2.7-ucs.1
ONLYOFFICE Docs: Version 6.3.1.33 can be upgraded to 7.1.1.23
Starting univention-app upgrade at Fri Aug 12 10:24:10 2022…
Most of the output for App upgrades goes to /var/log/univention/appcenter.log

Starting app upgrade Traceback in univention-upgrade:
Traceback (most recent call last):
File “/usr/lib/python3/dist-packages/univention/updater/scripts/upgrade.py”, line 430, in do_update
update_available = performUpdate(options, checkForUpdates=options.check, silent=False)
File “/usr/lib/python3/dist-packages/univention/updater/scripts/upgrade.py”, line 139, in performUpdate
if func(options, checkForUpdates, silent):
File “/usr/lib/python3/dist-packages/univention/updater/scripts/upgrade.py”, line 314, in do_app_updates
pwdfile=options.pwdfile.name if options.pwdfile else None,
File “/usr/lib/python3/dist-packages/univention/appcenter/actions/init.py”, line 167, in call_safe
return cls.call(**kwargs)
File “/usr/lib/python3/dist-packages/univention/appcenter/actions/init.py”, line 175, in call
return obj.call_with_namespace(namespace)
File “/usr/lib/python3/dist-packages/univention/appcenter/actions/init.py”, line 181, in call_with_namespace
result = self.main(namespace)
File “/usr/lib/python3/dist-packages/univention/appcenter/actions/upgrade.py”, line 75, in main
for app in apps:
TypeError: ‘App’ object is not iterable

Hi when I try to run it from cli I get follwoing error:
univention-app upgrade admin-dashboard
Resolving dependencies for admin-dashboard
Going to upgrade UCS Dashboard (2.1)
(must_have_candidate) The application is either not installed or no newer version is available
Unable to upgrade. Aborting…
Failure will leave these apps untouched: admin-dashboard
Executing interface update_available for admin-dashboard
No interface defined

Any ideas? Thank you

Please try the solution from this article: Problem: 'App' object is not iterable - Update from App fails

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