Cant move ingame?? Blackrock Server

Hey guys!
I have merged my account from AT to Warmane now. All Characters are at Blackrock now..
But when i log in i can't move my charakter. can u help me pls?

i stay in the air and cant move and do something :(

This problem is just at the server blackrock! the others work perfectly and no lagging.
When i log into Blackrock it takes minutes to join and cant move with my char
whats the problem there?????

can no one help me?!
alrdy deleted cache, interface and wtf folder but nothing helps....