Need fast help with Admin

Hi Guys,
today a group of players joined Sever #1111 and start building a great Clan in houers the get very fast with lvl up and some sh…t.
Tomorrow the will do a whipe
Problem
We can all say that they got a hacker in the group of players and need an Admin so they get banned
also hes streaming is Hacking on youtube so everybody see it
Fast Help befor the sever is gone
Thx