Problème plugin permission Minecraft

Bonjour,
J'ai récemment téléchargé et configuré le plugin permission sur mon serveur minecraft, mais il y a un problème :
Les permissions ne s'applique pas, les préfixes non plus, bref, on dirait que le plugin n'est pas sur le serveur !
Voici ma configuration :

groups:
    Visiteur:
        default: true
        info:
            prefix: '§7[Visiteur]'
            suffix: '§f'
            build: false
        inheritance:
        permissions:
            - 'foo.bar'
	Membre:
        default: true
        info:
            prefix: 'Membre'
            suffix: ''
            build: true
        inheritance:
        permissions:
            - 'essentials.afk'
			- 'essentials.afk.kickexempt'
			- 'essentials.help'
			- 'essentials.help.'
			- 'essentials.helpop'
			- 'essentials.ignore'
			- 'essentials.info'
			- 'essentials.list'
			- 'essentials.mail'
			- 'essentials.mail.send'
			- 'essentials.motd'
			- 'essentials.msg'
			- 'essentials.nick'
			- 'essentials.rules'
			- 'essentials.spawn'
			- 'essentials.home'
			- 'essentials.sethome'
			- 'essentials.delhome'
			- 'essentials.tpa'
			- 'essentials.tpaccept'
			- 'essentials.warp.list'
			- 'essentials.warp'
			- 'essentials.portal'
			- 'iConomy.payment'
			- 'iConomy.access'
			- 'iConomy.rank'
			- 'iConomy.list'
			- 'ChestShop.shop.create'
			- 'ChestShop.shop.create.itemID'
			- 'ChestShop.shop.buy'
			- 'ChestShop.shop.buy.itemID'
			- 'ChestShop.shop.sell'
			- 'ChestShop.shop.sell.itemID'
			- 'ChestShop.mod'
	
    Moderator:
        default: false
        info:
            prefix: '§4[Moderateur]'
            suffix: '§f'
            build: true
        inheritance:
            - Default
        permissions:
            - 'essentials.antioch'
			- 'essentials.backup'
			- 'essentials.ban'
			- 'essentials.ban.exempt'
			- 'essentials.ban.notify'
			- 'essentials.ban.offline'
			- 'essentials.banip'
			- 'essentials.broadcast'
			- 'essentials.burn'
			- 'essentials.clearinventory'
			- 'essentials.clearinventory.others'
			- 'essentials.deljail'
			- 'essentials.essentials'
			- 'essentials.ext'
			- 'essentials.fireball'
			- 'essentials.gc'
			- 'essentials.invsee'
			- 'essentials.jails'
			- 'essentials.kick'
			- 'essentials.kick.exempt'
			- 'essentials.kick.notify'
			- 'essentials.kickall'
			- 'essentials.kill'
			- 'essentials.mute'
			- 'essentials.mute.exempt'
			- 'essentials.nuke'
			- 'essentials.reloadall'
			- 'essentials.setjail'
			- 'essentials.socialspy'
			- 'essentials.spawnmob'
			- 'essentials.tempban'
			- 'essentials.tempban.exempt'
			- 'essentials.tempban.offline'
			- 'essentials.thunder'
			- 'essentials.jail.exempt'
			- 'essentials.togglejail'
			- 'essentials.togglejail.offline'
			- 'essentials.unban'
			- 'essentials.unbanip'
			- 'essentials.weather'
			- 'essentials.give'
			- 'essentials.give.item-all'
			- 'essentials.god'
			- 'essentials.heal'
			- 'essentials.god.others'
			- 'essentials.heal.others'
			- 'essentials.item'
			- 'essentials.time'
			- 'essentials.back'
			- 'essentials.delhome'
			- 'essentials.delhome.others'
			- 'essentials.delwarp'
			- 'essentials.jump'
			- 'essentials.sethome'
			- 'essentials.sethome.others'
			- 'essentials.setwarp'
			- 'essentials.tp'
			- 'essentials.tphere'
			- 'essentials.warp'
			- 'essentials.warp.list'
			- 'essentials.warp.otherplayers'
			- 'essentials.portal'
			- 'iConomy.payment'
			- 'iConomy.access'
			- 'iConomy.rank'
			- 'iConomy.list'
			- 'ChestShop.shop.create'
			- 'ChestShop.shop.create.itemID'
			- 'ChestShop.shop.buy'
			- 'ChestShop.shop.buy.itemID'
			- 'ChestShop.shop.sell'
			- 'ChestShop.shop.sell.itemID'
			- 'ChestShop.mod'
			- 'ChestShop.admin'
			- 'lockette.admin.break'
			- 'lockette.admin.snoop'
			- 'lockette.admin.reload'
			- 'worldedit.clipboard.copy'
			- 'worldedit.clipboard.paste'
			- 'worldedit.clipboard.cut'
			- 'worldedit.history.undo'
			- 'worldedit.history.redo'
			- 'worldedit.region.set'
			- 'worldedit.fixlava'
			- 'worldedit.fixwater'
			
    Admins:
        default: false
        info:
            prefix: '§5[Administrateur]'
            suffix: '§f'
            build: true
        inheritance:
        permissions:
            - '*'


users:
    Zelouiix:
        group: Admins
        permissions:
			- '*'
    Herpina:
        group: Moderator
        info:
            prefix: 'Moo'
            suffix: 'Cow'
        permissions:
            - 'herp.derp'
    Derpina:
        group: Admins
        permissions:
            - '-derp.derp'
			
	Zelouiix:
		group Admins
		permissions:
			- '*'

Merci d'avance !
Cordialement,
Zelouiix