i can't log in

[SkullPieces124 0]

Hello i just found out about this private server yesterday and im wanting to join up but im not able to? after download im trying to log it but i constantly get hit with a "We couldn't log you in with what you've just entered" any tips? because im putting my USERNAME in not email tried email as well and doesn't work i really want to play this what am i doing wrong

[Despair 862]

Hello! Make sure you are running the correct game client and you have an account registered on our server - https://cp.epicwow.com/auth/signup