auto-banned from hi skill server

[M__Stayla]

Hi guys. today, i was playing hi skill on the hub on 1.1 (i think it was the hub)

right when i wanted to take the enemy flag, i got auto banned from the server. as reason "abnormal client" or something. what is it??
how to fix it?

Also i cant make screens with F12. whenever i press the button, my AC crashes.

Can some1 help me pls? =D

Greetings, Marten