Issue installing Collabora following official guide

@MikeLupe why don’t you use the LetsEncrypt include file in your VirtualHost config? Like here:

<VirtualHost *:443>
        [...]
        # Include letsencrypt SSL configuration defaults
        Include /etc/letsencrypt/options-ssl-apache.conf

        #   SSL Engine Switch:
        SSLEngine on
        SSLCertificateFile    /etc/letsencrypt/live/office.test-vm.example.org/fullchain.pem
        SSLCertificateKeyFile /etc/letsencrypt/live/office.test-vm.example.org/privkey.pem
</VirtualHost>