All the websites I host do not work!

Since Cloudflare runs on my server only my own website that works, however none of the websites I host work.
I have these kinds of messages on all browsers

    Um, we can not find this site.

    Can not connect to the server at

    If the address is correct, here are three other things you can try to do:

         Try again later.
         Check your network connection.
         If you are connected through a firewall, check that Firefox has permission to access the web.


    This site is inaccessible took too long to answer.
    Try the suggestions below:

    Check the connection
    Check the proxy and the firewall
    Run Windows Network Diagnostics

In short the DNS are not solved. Is there anyone to help me?

A post was merged into an existing topic: This site is inaccessible