Hi khaled, I'm the one that banned you. I'm not sure if you're new here, but I'll explain how you broke the rules:
When a player kills himself because he doesn't want another player to kill him, it's called death evade. There are a few ways to death evade. For example, you could type /kill when someone is chasing you, or you could jump in the water and drown yourself, like you did. I know sometimes it can be frustrating to die a lot, but it's against the rules to death evade.
I noticed death evade isn't in the list of rules, so I request another admin lift khaled's ban and let him back in.
In the future khaled, remember: no death evade.