Nostalrius Begins - Quality wow vanilla realm (1.12)

Hi, the account of my brother has been banned a few days ago. He had a problem of connections then some connection/disconnection... Finally, he saw a message of banish. He doesn't understand why... Can I have some explanations ?
character name : Pudhuk
serv : nostalrius pvp

Thank you !

anyone can help me ?

Your brother needs to create his own thread and application for the appeal.