Problem with update to 5.0.2 errata515

Hello together,

I have a problem to install latest updates. I always get an error with kopano z-push.

My system is 5.0-2 errata508.

Can someone help me with this error, please?

Best regards,
Stefan


Ein Fehler ist aufgetreten:
Die Anfrage konnte nicht bearbeitet werden.
Interner Server-Fehler in "updater/updates/check".

Interner Server-Fehler in "updater/updates/check".
Request: updater/updates/check

Traceback (most recent call last):
  File "/usr/lib/python3/dist-packages/apt/cache.py", line 587, in update
    pulse_interval)
apt_pkg.Error: E:Das Depot »https://download.kopano.io/zhub/z-push:/pre-final/Univention_5.0  Release« enthält keine Release-Datei.

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "/usr/lib/python3/dist-packages/univention/management/console/base.py", line 347, in __error_handling
    six.reraise(etype, exc, etraceback)
  File "/usr/lib/python3/dist-packages/six.py", line 693, in reraise
    raise value
  File "/usr/lib/python3/dist-packages/univention/management/console/base.py", line 250, in execute
    function.__func__(self, request, *args, **kwargs)
  File "/usr/lib/python3/dist-packages/univention/management/console/modules/decorators.py", line 324, in _response
    result = _multi_response(self, request)
  File "/usr/lib/python3/dist-packages/univention/management/console/modules/decorators.py", line 184, in _response
    return function(self, request)
  File "/usr/lib/python3/dist-packages/univention/management/console/modules/decorators.py", line 446, in _response
    return list(function(self, iterator, *nones))
  File "/usr/lib/python3/dist-packages/univention/management/console/modules/decorators.py", line 292, in _fake_func
    yield function(self, *args)
  File "/usr/lib/python3/dist-packages/univention/management/console/modules/updater/__init__.py", line 305, in updates_check
    apt.update()
  File "/usr/lib/python3/dist-packages/apt/cache.py", line 589, in update
    raise FetchFailedException(e)
apt.cache.FetchFailedException: E:Das Depot »https://download.kopano.io/zhub/z-push:/pre-final/Univention_5.0  Release« enthält keine Release-Datei.

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