I added three wild card sub domain to same server IP and try to add the SSL. It worked for few hours but after that it again stopped and giving a connection error. So please help me

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So thanks for precious replies. So If I will follow the first option and want to add three sub domain then i need to run below command -
sudo certbot --apache -d cp2.skop.es,pasa.skop.es,rcsa.skop.es`.

Please confirm.

Also so my main requirement is to get the wild card sub domain certificates. So should I follow this - Getting wildcard certificates with Certbot
Please confirm