Hey,
Having a issue adding command cooldown to /fix

command-cooldowns:
nick: 30

This is what i have set in config, but players can still use without a cooldown, i tried changing the nick to ext and cooldown worked perfectly. Thanks in advance

Because you need to indent nick, it's how yaml files work.

command-cooldowns:
  nick: 30

it is indented, its just the way it got pasted on here

Make sure they aren't bypassing cooldowns then. https://github.com/drtshock/Essentials/wiki/Command-Cooldowns#bypass

If you dont think they are, type /ess debug, reproduce this bug, then pastebin the server log.

08.09 22:00:52 [Server] INFO [Essentials] checking if lachlan7327 has essentials.commandcooldowns.bypass - false

Still was able to bypass cooldown though

Heres the pastebin: http://pastebin.com/rBXGSE3N

In your main issue, you write
command-cooldowns:
nick: 30

but in that log you try and execute a different command called /fix. When reporting an issue, the tiniest details matter. Yes, even the command you're executing.

That is your problem. I assume you put the following in your config:

command-cooldowns:
  fix: 30

That's invalid because there is no command actually called fix instead, there's an alias for repair called fix.

Essentials cooldowns requires that you use main command names. Please refer to the Command Reference for information regarding command names.

Duplicate of #803.

Ahh legend! That did the trick, thank you very much!