Nostalrius Begins - Quality wow vanilla realm (1.12)

Hello, i want to know why my account has been banned and how can i fix this problem? I see other people are having the same problem with their accounts. Char name is ,,Adero". Thanks.

Same thing here. Yesteray i was banned with an account, made a new one got banned again. Now trying to log in with another account and got banned again.

Just joined the commnunity, dont even know what the problem is. Ty.