CANT ENTER GAME O.o

every time i want to log in to game it saying YOUR ID HAS BEEN LOGED IN ALREADY WOULD YOU LIKE TO LOG IN AGAIN when i click yes button i got msg YOU CANT ACCES THE TEST SERVER what the ... is test server? and why i got such msg ? i dont use hacks i got clean pc from viruses etc ;/ im little angry im buying ZP and after i spend my money on it i cant play... it suks