[I accidently said t/join [server]]

Ign: MrJusticeGaming
Why i was muted: I accidently said t/join server

Proof: t is the default keybind for chat i thought i didnt press it and i saw a ad so i tried to /join it and I got muted for 4 weeks

I have been punished but it was with /ad and cap locks on a few times because i forgot you cant do caps

 

[How to clear all mobs?]

I am starting a server like a box mining server and i cant figure out how to make it so where no mobs spawn like most servers?? Is there a plugin? I tried a no spawn script but there are still a lot of mobs. 

[For server owner]

Wim we need you online please join foodfarmsx we cant do luckperms

 

[For server owner]

How do you enter the skript so it works?