Can i get help ? ( i just got banned for no reason )

[Yasmath]

Good afternoon ! I wanted to try to play again BO1 with plutonium plateform. So i followed the instructions step by step and when i try to sign in plutonium a message tells me that i got banned for 364717 days. Can someone can help me or explain why it happened ?
Thx for the answers (and sorry for the mistakes im quite bad in english).