I couldn't help it, because my teammates opened up and I was sealed too

Your account ybj00 VAC and game banned
The closure of game developers
H1Z1: King of the Kill - view help page
The game ban is implemented by various games, not VAC banned. Steam customer service can not disarm your game, and can not provide you with more information about the ban. The game has provided all the information that you can access to the ban.
See the common questions about game closure.