Could you please give us the url? And does it still show that error?
Well, due to my experience in SMF Forums, i can tell you that it is because the server (FRIhost) was a little busy and the minimun usage for the forums wasn´t available...that happens only by a few minutes, when the server gets free again, it all returns to normal.
Thats completely normal on this kind of servers, sometimes when you have many things with a database, every one of them shows an error message at a time (PHP-Nuke and SMF, for example).
Don´t worry, whenever you get that message, just try again later. Thats not for the database (i repeat) its for the server being busy at that moment.
Ok, yeah, it works, I just wish there was something I could do, if a one time visitor/future member got that error, well that's one less member I would have.
Yeah, thats right...but anyway, that error is not too coon (i´ve just saw it like three times...) besides, it depends on the host.