[SOLVED] Account randomly stopped working?

[Cameron]

I've been working on a site for some friends for a while. This morning, we were all viewing it...until all of us stopped being able to access it. None of us could be banned from the server (I was the only one logged in as well). When trying to access my domain, I get the usual "Oops! Couldn't find [url]" (i'm using chrome).

I'm not exactly sure why this might be.

Oh, and I can't access cPanel through my site either. Nothing works at all. (Yes, the domain has not expired, and the nameservers are ns1.niftyhost.us and ns2.niftyhost.us :P)

Thanks in advance.