Nothing is wrong. It's exactly what it said in the message: The hot wallet (the one that is one the server) doesn't have enough funds in it. The vast majority of the invested coins are in a cold wallet, on a machine that is never connected to the internet, for security reasons. So you'll have to contact dooglus (see bottom of FAQ tab ^^) for a manual withdrawal to be done.

It's not the most elegant solution, but for security reasons this is the only realistic way to do it.