The server has been moved to the new, more powerfull hardware.
In order to be able to connect to the new server's address, you should launch patcher-thor.exe.
If you're experiencing some troubles with the patching, you could download the full patch from here:
http://rusro-thor.com/downloads/thor-patch.php

Server rates become higher.
Common drop x200.
Mvp Drop x60.

Wings (+200 stats) were added in the castle treasure boxes drop.