Seems like they had a problem, the site redirect to the blog with the message;
Amazon AWS shortage
Dear Users,
Due to an Amazon EC2/AWS shortage this morning we had to take the site offline. For security reasons we are now reindexing our wallet, it will take some time (approx. 2h).
We will keep you posted.
They better be back up without any problems, I had all my Bitcoins in there...
It would be embarrassing for everyone, everyone says "people on BTCjam will scam the shit out of you" Be funny if BTCjam themselves scam x_x