Since R2 games is down as well, I can only assume this is a problem from their end, rather than the AG end. For the past two days, starting around 6pm EST, the game has been down. Yesterday, it was down until at least 1am EST, as I checked one last time after giving up for a few hours before going to sleep. Today, it has been down for 2 hours thus far. If there is any information you (AG) can obtain from R2 as to what might be going on that would be great.
I read on their forum yesterday when they were still on that apparently it's not something they can do anything about as the problem lies at the web-hotel/server is the one at fault. The problem they have is that there is a DNS-malfunction that makes everything lose out connection.
The owners of the hotel/server are working overtime right now to try and fix the problem but they don't know how long this will take so just keep calm and try every once in a while to see if the game is back online.
R2games haven't stated anything yet but I'm personally 99% sure they will offer a gift/package or event as compensation after all this trouble is over.