I normally enter the forums through https://forums.macrumors.com but I'm getting a cpanel message about it: "There is no website configured at this address."
I had the same problem intermittently earlier today...it only lasted maybe 10 seconds at a time, but did occur multiple times. Haven't noticed it in the last few hours (although I have been getting a few errors when trying to click on threads, but those are easily fixed by reloading).