Problems with subdomains and Kopano after upgrade to 5.0.2

I have updated my small, well-running server with kopano, fetchmail, nextcloud and letsencrypt from the last version 4 to version 5.02.

I have two subdomain „“ and „“.

Now I have the following problems:

Where can I look for the error. I need my mail access



The errors were due to the order of the entries in apache2/sites-enabled.

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