Another super annoying addition, I updated today hoping all the console spam was gone, but thats another issue.
Today introduced a SUPER annoying message every time you kill a mob "You gained £0!" Why on earth would anyone pay people to kill mobs in the first place? I have this set to 0 on all mobs, there should not be a message at all.
how do I stop this really really really annoying message showing each time you kill a mob?

You can't turn it off. It's a bug, it's not meant to be so. I will see if I can find some time tonight and fix this.

And you can rool 2 versions bag if you prefer that.

I have simply not tested a kill of a mob with no reward.

Can you please post your config.yml so I am sure test the same conditions? (use pastebin.com)

Jesus Christ this is annoying, how do I turn it off? Every single player is moaning about it. Why would this be a good idea?
I tried just editing the languages to be '' but that just displays the '' in game! what is this!

I dont mind that you use something else than Pastebin. Its just than some people try to put the config here at Github, which gives a bad result.

I your case i found to two errors in your config.yml

Check these settings:

  # Rounding of rewards when you uses a range or %. (ex creeperPrize=10:30) the reward.
  # All numbers except 0 can be used.
  # Set rounding_reward=1 if you want integers. IE. 10,11,12,13,14...
  # Set rounding_reward=0.01 if you want 2 decimals 10.00, 10.01, 10.02... integers.
  # Set rounding_reward=5 if you want multipla of 5 IE. 10,15,20,25...
  # Set rounding_reward=2 if you want multipla of 2 IE. 10,12,14,16...
  reward_rounding: 0.0
 
  # This is the minimum reward which will which will be paid to the player 0.01 will be fine
  # in most installation, but Gringott users who want very low rewards (like 0.001  for killing
  # a mob) will have to lower the minimum reward. Remember that some multipliers are less than 1
  #  and grinding detection and penalties. The minimum_reward should therefor be less than 10%
  #  of smallest reward. In the Gringotts example minimum_reward should be 0.0001 or 0.00005.
  minimum_reward: 0.0

You can NOT set "reward_rounding" down to 0 , I have written this in the text ;-)

and if you say that "minimum_reward: 0.0" it gives you the result that you complain about - if minimum_reward is 0 the plugin announces the reward EVEN if the reward is 0. You should probably set this to f.ex. "0.01" depending on what currency you use.

So In this case where you complain about bugs this is actually you who has changed default values to something which will give you problem and your players will complain!

I cant help you here, change the values to something meaningful.

God i've not used pastebin over gist in forever:
https://pastebin.com/UgzBeqjL

I don't want to give ANY currency to any players for something as stupid as killing a mob, everything is 0 to try and disable any mention of currency, its such a sketchy thing to do try and reward people for killing mobs.
I'm only using this plugin for head drops.
LOL meaningful? yes 0 is meaningful, it means disable, 0.01 ISN'T meaningful hahahaha
You have this designed so badly.

Well the plugin is a "kill a mob an get a reward" plugin and not a "head drop" plugin. You are the only one who can't understand the minimum thing, and it's you who dont understand because you dont use the plugin as intended. Anyway - In newest release I have decided to test if someone dont understand how it works and set it to 0.

It was never my intention to make a plugin where you didn't get rewards ;-)

One the problems about the flexibility in this plugin is that it's more than many users can handle.