permissions prefix

i need help
im using permissions and the prefix doesnt work and i have no idea why

Code:

groups:
    Default:
        default: true
        info:
            prefix: '&7[NewGuy]&7'
            suffix: ''
            build: true
        inheritance:
        permissions:
        - general.items
        - '- general.spawn.set'
        - '- general.player-info'
        - '- general.time'
        - '- essentials.give'
        - '- essentials.give.item-all'
        - '- essentials.god'
        - '- essentials.god.others'
        - '- essentials.unlimited'
        - '- essentials.bigtree'
        - '- essentials.heal'
        - '- essentials.item'
        - '- essentials.kit'
        - '- essentials.time'
        - '- essentials.tree'
        - '- essentials.eco'
        - '- essentials.setworth'
        - '- essentials.nick'
        - '- essentials.powertool'
        - '- essentials.spawner'
        - '- essentials.suicide'
        - '- essentials.ban'
        - '- essentials.banip'
        - '- essentials.broadcast'
        - '- essentials.burn'
        - '- essentials.clearinventory'
        - '- essentials.kick'
        - '- essentials.kill'
        - '- essentials.setjail'
        - '- essentials.spawnmob'
        - '- essentials.tempban'
        - '- essentials.togglejail'
        - '- essentials.unban'
        - '- essentials.unbanip'
        - '- essentials.weather'
        - '- essentials.setspawn'
        - '- essentials.delwarp'
        - '- essentials.setwarp'
        - '- essentials.tp'
        - '- essentials.tpall'
        - '- essentials.tphere'
        - '- essentials.warp.otherplayers'
        - '- essentials.eco.loan'
        - '- essentials.joinfullserver'
        - essentials.help
        - jobs.join.<jobname>
        - essentials.list
        - essentials.msg
        - essentials.rules
        - essentials.spawn
        - essentials.home
        - essentials.sethome
        - essentials.tpa
        - essentials.tpdeny
        - essentials.tpaccept
        - essentials.warp
        - essentials.warp.list
    Member:
        default: false
        info:
            prefix: '&9[Citizen]&9'
            suffix: ''
            build: true
        inheritance:
        - Default
        permissions:
        - warpplugin.warp
        - econplugin.basic.*
    Moderator:
        default: false
        info:
            prefix: '&2[Moderator]&2'
            suffix: ''
            build: true
        inheritance:
        - Admins
        permissions:
        - modplugin.ban
        - modplugin.kick
        - modplugin.unban
        - essentials.joinfullserver
    Admins:
        default: false
        info:
            prefix: '&4[Admins]&4'
            suffix: '&4'
            build: true
        inheritance:
        permissions:
        - '*'

users:
    ran1:
        permissions:
        groups:
        - Admins
    stiven0766:
        permissions:
        groups:
        - Moderator

can some help me fix that?

Bump.
someone?

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

 

I know why. You have to install plugin like IChat for the prifixes and sufixes to work.
Hope this helps