Problem Expired Certificate

Dear Admin,

I try to sync my files but zotero is not doing it, and shows the following problem:

uni-koeln.sciebo.de uses an invalid security certificate.
The certificate expired on 23. April 2023, 18:18. The current time is 24. April 2023, 06:59.
Error code: SEC_ERROR_EXPIRED_CERTIFICATE

All my certificates are actually updated. Please help.
  • The message means what it says. It has nothing to do with Zotero. Talk to the administrator of that server.
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