SAML "empty iterable" Error in Diagnostc

After Renewing the Keychain and reinstal the SAML Certificates (ans all other) I have a Error by the SAML Certificates
On System Diagnostic Page. Working in Master System

Traceback (most recent call last):
File “/usr/lib/python3/dist-packages/univention/management/console/modules/diagnostic/init.py”, line 276, in execute
ret = execute(umc_module, **kwargs)
File “/usr/lib/python3/dist-packages/univention/management/console/modules/diagnostic/plugins/04_saml_certificate_check.py”, line 68, in run
if keycloak_fqdn and ‘realms/ucs/protocol/saml/descriptor’ in umc_saml_idp:
TypeError: argument of type ‘NoneType’ is not iterable

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