Kigen's Anti-Cheat

I got banned by KAC, I'm not even sure why... I joined a server that had KAC on it, and got banned instantly...

STEAM_0:0:20146677

I do have a LUA script that I wrote.
When I press a key that it's binded to, It causes me to shoot my AWP then say ".play 2".
Which, on the server I usually play on ...