Any Help Here my Server Under Attack

Can Some one help me how To Stop ppl make Them Self Gm in my Server Pls no hints only Explain Please :handsdown:

why make a guide for something if you don't want to understand it?

what's wrong admin? are you getting owned by players? but you're a server admin. how can this happen?

there are ppl have been release Some Staff in ******** To do that .. and also there is something to stop that .. if any one can help pls do it now ...