What is the actual domain?

@parvinwork

Without knowing the domain, we can’t really check the DNS to see what is or isn’t valid. With that, my suggestion would be to make sure your DNS looks like:

A          @          DROPLET_IP
A          *          DROPLET_IP
CNAME      www        domain.com

… and that your VirtualHost (Apache) or Server Block (NGINX) is setup properly. Of course, these are just suggestions. We’d need to check your DNS and look at the configuration if the DNS matches the above.