If you want to get e certificate for your Domain or Subdomain, it is important that your A-Records of your Domain Point to the Public IP-Adress to your server. Do you have a Public IP-Adress and do your A-Records point to it?
My little checklist for Let’s Encrypt:
Domain/Subdomain point to my public ip
My webserver handle that domain/subdomain over port 80 to receive certificate
Create ssl vhost with certificate, to provide ppl to access my page over https
It’s concerning that the IP addresses mentioned in the screenshot are private (192.168) IP addresses, not public addresses. So @Sm3rT’s question is very appropriate: is this machine (where Certbot is being run) actually listening for connections to the public IP address 211.59.145.156?