KESSLER1
It is an old, well-known issue, and it will never change. You are not the first one, and you will not be the last one.
The owner, who is also the only admin, has some mental issues and gets triggered rather easily, so it will be impossible for you to even try to explain yourself.
He claims to have been playing since the days of CoD4, but his K/D is not higher than 0.8, which means he despises tryhards.
Most of his bans are ways to keep the server full of people who play like bots, and as soon as he spots a tryhard, they get banned.
But they will eventually get unbanned at some point. I have been banned from his server at least 50 times, more or less.
You will also get muted a lot, and his Discord is also muted because countless people have tried to appeal their bans. They harass him because he refuses to be fair.
Play on another server, or get ready to not enjoy playing on his server at all.