I was also banned yesterday from this server and I also wasn't cheating. I guess it's my fault for playing as if it was a tactical fps?
It's sad because that's the only active server in South America, so I'm now forced to play with +120 ping.
From what I found in other posts, seems like Ghy54- is the owner of the server. Maybe he could check the bans as it seems the server doesn't have any discord.