Not even my host could help me!

Getting listing ""...
Resolving host name
Can't resolve "".
>I have filed multiple support tickets but my host still doesn't know what to do.
Not only that but sometimes it just lags, then doesn't connect (no error logs)

I've typed in all the right info, just let me make sure with y'all
Address: my username

But then I get the stupid error stuff "can resolve my domain"

What do I need to do?