My GroupManger is not working, I think It may have to do with essentials.

If you are reading this, and about to suggest PermissionsEX, don't. This is my chat in-game, I am unsure why it is doing this.
I will now list my Essentials chat config:

Code:

############################################################
# +------------------------------------------------------+ #
# |  EssentialsChat  | #
# +------------------------------------------------------+ #
############################################################

# This section requires the EssentialsChat.jar to work.

chat:

  # If EssentialsChat is installed, this will define how far a player's voice travels, in blocks.  Set to 0 to make all chat global.
  # Note that users with the "essentials.chat.spy" permission will hear everything, regardless of this setting.
  # Users with essentials.chat.shout can override this by prefixing text with an exclamation mark (!)
  # Users with essentials.chat.question can override this by prefixing text with a question mark (?)
  # You can add command costs for shout/question by adding chat-shout and chat-question to the command costs section."
  radius: 0

  # Chat formatting can be done in two ways, you can either define a standard format for all chat.
  # Or you can give a group specific chat format, to give some extra variation.
  # For more information of chat formatting, check out the wiki: [URL]http://wiki.ess3.net/wiki/Chat_Formatting[/URL]

  #format: '<{DISPLAYNAME}> {MESSAGE}'
  format: '&7[{GROUP}]&r {DISPLAYNAME}&l>&r {MESSAGE}'

  group-formats:
  #  Default: '{WORLDNAME} {DISPLAYNAME}&7:&r {MESSAGE}'
  #  Admins: '{WORLDNAME} &c[{GROUP}]&r {DISPLAYNAME}&7:&c {MESSAGE}'

  # If you are using group formats make sure to remove the '#' to allow the setting to be read.

If you need to see any other plugin I am glad to tell you, thanks ~Hershey

 

Right, so you have your group formats commented out. Any line in the config file with a "#" in front of it will not be read. You should make a group-format for each of your groups and setup the format according to what you want the chat to look like for each group.