Low-level guests and players need to vote. Currently, the vote kick requires 4 votes, which is not possible due to the lack of many players.
You should simply vote for half of the players on this server. In addition, guests and low-level players need to be able to vote, as the number of players who can vote is not sufficient to achieve the vote. Hackers affect all types of players, not just high level players. I'm at level 50 and can't get rid of hackers even though my rating is 1.5 because players on the server can't kick.