Note: Let’s Encrypt does not use Google or Other Public DNS providers. It uses your DNS servers
You have 3 servers 2 of which seem to be aliased other name servers. You can try run the command again and it should pass as Let’s Encrypt chooses a server at random (look up on this forum as this has been discussed before)
But i have 2 servers. one for web applications and one for email. If i copy the certificate and key and the CA Root Certificate to my other server the common is not correct any more:
However you web server is not using that certificate
Copying the certificate is not enough always. depending on the web server/mail server you use you may need to restart for the new certificate to be used