PermissionEx : config.yml remis à zéro

[InfinityHD]

Bonjour j'utilise actuellement PermissionEx sur mon serveur.
Malheuresement, à chaque fois que j'ajoute quelqu'un dans un groupe le fichier config.yml est remis à zéro. De plus le le grade par "default" ne se met pas par défaut.
J'utilise comme autres plugins Essentials et ses dérivés

groups:
    default:
        permissions:
            permissions.build: true
            essentials.balance: true
            essentials.pay : true
            essentials.afk: true
            essentials.help: true
            essentials.helpop: true
            essentials.list: true
            essentials.mail: true
            essentials.mail.send: true
            essentials.motd: true
            essentials.msg: true
            essentials.rules: true
            essentials.suicide: true
            essentials.ban.notify: true
            essentials.kick.notify: true
            essentials.mute.notify: true
            essentials.spawn: true
            essentials.delhome: true
            essentials.home: true
            essentials.sethome: true
            essentials.tpaccept: true
            essentials.tpaccept: true
            essentials.warp: true
         
   
    VIP:
        permissions:
            essentials.afk.kickexempt:true
            essentials.ignore: true
            essentials.info: true
            essentials.me: true
            essentials.msg.color: true
            essentials.recipe: true
            essentials.enderchest: true
            essentials.ping: true
            essentials.back: true
            essentials.sethome.multiple: true
            essentials.tpa: true
           
       
           
        inheritance:
        - default
    Moderateur:
        permissions:
            essentials.balance.others: true
            essentials.balancetop: true
            essentials.helpop.receive: true
            essentials.chat.ignoreexempt: true
            essentials.mail.sendall: true
            essentials.seen: true
            essentials.ban: true
            essentials.ban.exempt: true
            essentials.banip: true
            essentials.broadcast: true
            essentials.burn: true
            essentials.clearinventory: true
            essentials.clearinventory.others: true
            essentials.enderchest.others: true
            essentials.invsee: true
            essentials.jails: true
            essentials.kick: true
            essentials.kick.exempt: true
            essentials.kickall: true
            essentials.kill: true
            essentials.kill.exempt: true
            essentials.mute: true
            essentials.mute.exempt: true
            essentials.socialspy: true
            essentials.tempban: true
            essentials.togglejail: true
            essentials.jail.exempt: true
            essentials.unban: true
            essentials.unbanip: true
            essentials.spawn.others: true
            essentials.delhome.others: true
            essentials.home.others: true
            essentials.sethome.others: true
            essentials.tp: true
            essentials.tp.others: true
            essentials.tpaall: true
           
           
       
        inheritance:
        - VIP   
    Administrateur:
        permissions:
            permissions.*: true
            essentials.*: true
           
        inheritance:
        - Moderateur 
messages:
    build: '&cYou do not have permission to build here.'
 
debug: false