I think that error is cause by hosting so it is maybe OP stop the hosting already. If he is planning to make this then he should have warn people to withdraw but there is no sign from OP about this so he could be taking away that btc but this is just my predictions . This is very weird
I think he is an honest guy and has always intended to repay everyone. I had freeroll chips on there and he fully paid me when other site operators might not have. (All told I made more than 0.260 btc there ...) If you still had chips on the site just PM him. I'm sure all will be resolved appropriately. Obviously the site is for sale and OP is just controlling costs until a sale can be finalized.
If this is so then I apologize for getting the bad idea that he is going to steal it. I hope nobody lost his fund here . I just think this is just very weird to shut down hosting without telling the player to take the btc out from the site first