Apparently it's a DDOS:
Even it might be hard to imagine for you but there are also serious bitcoiners out there who would not be able to live good when they stole btcs..
SORRY for no response guys! Bitmit was/is facing a DDOS attack and our hoster decided to take the server temp. offline to protect the network. I am working to get it online again. I hoping this can be done in the next hour.