je ne comprend pas quand je démarre le serveur il me met ca

essentials group manager ne marche pas voici le contenu de mon dossier groups.yml
groups:
Default:
default: true
permissions:
-essentials.help
-essentials.helpop []
inheritance:
info:
prefix: '&e'
build: false
suffix:
Joueur:
default: false
permissions:
-essentials.balance
-essentials.pay
-essentials.protect
-essentials.signs.use.*
-essentials.suicide
-essentials.tpa
-essentials.tpaccept
-essentials.tpdeny
-essentials.warp
-essentials.help
-essentials.helpop []
inheritance:
- default
info:
prefix: '&2'
build: true
suffix:
Modo:
default: false
permissions: []
inheritance:
- Joueur
info:
prefix: '&5'
build: true
suffix:
Admin:
default: false
permissions: []
inheritance:
- Modo
- g:groupmanager_admin
- g:bukkit_admin
- g:essentials_admin
- g:towny_admin
- g:vanish_admin
info:
prefix: '&c'
build: true
suffix:
Dieu:
default: false
permissions:
- '*'
- -vanish.*
inheritance:
- admin
info:
prefix: '&4'
build: true
suffix: ''

voici le dossier groups.yml de essentials group manager

aucune commande ne marche