Im in a server with molotov5 and he was annoying us so we banned his ip from the server but he apparently hacksd his ip so we cant ban him so now he keeps coming back ad spamming! I have many screenshots of him here they are.

In other words, he lied. There is no such thing as an "ip hack". And kiddies can't spoof.

Pm any gm for an ASAP resolution.

use /ban instead of /mute

If you mute or kick him, he can simply disconnect and then reconnect again.
If you force spec him, he can simply re-enter.
So ban him as what Fish said, do /ban *player name*

This isn't the first time he's acted like an idiot.

I'll speak to him about that.

As for the accusation of IP changing; you were using /mute, when you should've been using /ban.

/mute [username] - Prevents any output from applied user to communicate with the server, therefore muting him (keeping him from speaking).

/ban [username] - Bans said user from the server.