Failed authorization procedure. www.chess-calculator.com (http-01): urn:ietf:params:acme:error:dns :: No valid IP addresses found for www.chess-calculator.com, chess-calculator.com (http-01): urn:ietf:params:acme:error:dns :: No valid IP addresses found for chess-calculator.com
The following errors were reported by the server:
Your account credentials have been saved in your Certbot
configuration directory at /etc/letsencrypt. You should make a
secure backup of this folder now. This configuration directory will
also contain certificates and private keys obtained by Certbot so
making regular backups of this folder is ideal.
I have an IP address everywhere.
I use Ubuntu 18.04
Do you know what the problem is?