How do i install patch to known SAML error

Hi at UCS I’d like to know how to install patch on this link

regarding my issue when i run system diagnostics.
Traceback (most recent call last):
File “/usr/lib/python2.7/dist-packages/univention/management/console/modules/diagnostic/”, line 280, in execute
result = execute(umc_module, **kwargs)
File “/usr/lib/python2.7/dist-packages/univention/management/console/modules/diagnostic/plugins/”, line 77, in run
File “/usr/lib/python2.7/dist-packages/univention/management/console/modules/diagnostic/plugins/”, line 90, in test_identity_provider_certificate
for host in socket.gethostbyname_ex(sso_fqdn)[2]:
gaierror: [Errno -2] Name or service not known

In this same topic, i’m not sure if this prevents me from login as Administrator on my owncloud portal.

I can’t login, and hasn’t assigned an email for rest.
How can i get access to my Admin account again

Best Regards
Jan H W. Nielsen