Muting player

Hey,
Making this plugin where if you left click a player with a blazerod it mutes them. When a player "mutes" a player by hitting them, it says that the player is muted in Chat, but they can still speak.
Can you spot the issue?

CODE: http://pastebin.com/MHGeL56z

Config file:
mutedplayers:

 

Hi,
I am very new to doing plugins, this is my second one.

I remove the muted players from the list so it doesn't keep adding the same muted players to the list again, but it seems to only add one name, I have no idea what is happening, I am out of my depth to be honest, but I just want to know what is wrong.. XD

Is there a way to add a name to a config list instead of setting the list?

EDIT by Moderator: merged posts, please use the edit button instead of double posting.

 

But when the server restarts the string list(not config one) will become empty, so then it will set the list again and unmute them automatically, or am I wrong

 

@Abyssal
You can create a method that inputs the objects into the config onDisable(); then add them again in the onEnable();

EDIT: Sniped.

 

I have tried this

public void onEnable() {
Bukkit.getServer().getPluginManager().registerEvents(this, this);
muted.set(this.getConfig().getList("restart"));
}

public void onDisable() {
this.getConfig().set("restart", muted);
}

But, I can't set the "muted" in the onEnable because it's a list

 

Thanks for your help, and I am sorry that I am being such a pain. I have another issue now, when I hit the player (with mute mode enabled) this error comes up: http://i.imgur.com/bD80m4h.png - caused by the EntityDamageByEntity event

Code: http://pastebin.com/Rw1XBWhm

 

THANK YOU VERY MUCH

You have helped a lot

 

If your problem is fixed, edit the title of your thread and mark this as solved please