My permissionsEx plugin is not working.

Code (Text):

groups:
  default:
    options:
      default: true
    permissions:
    - essentials.spawn
    - essentials.kits.default
  Owner:
    permissions:
    - '*'
    options:
      prefix: '&7[&4Owner&7]&4'
    worlds:
      world:
        options:
          prefix: '&7[&4Owner&7]&4 '
  MVP+:
    permissions:
    - essentials.kits.MVP+
    - essentials.spawn
    options:
      prefix: '&7[&bMVP&c+&7]&b '
  MVP2:
    permissions:
    - essentials.kits.mvp
    - essentials.spawn
    options:
      prefix: '&7[&bMVP&7]&b '
  VIP:
    permissions:
    - essentials.kits.vip
    - essentials.spawn
    options:
      prefix: '&7[&aVIP&7]&a '
  Admin:
    permissions:
    - '*'
    options:
      prefix: '&7[&cAdmin&7]&c '
  Helper:
    permissions:
    - essentials.fly
    - essentials.kick
    - essentials.invsee
    - essentials.mute
    - essentials.god
    - essentials.vanish
    - essentials.spawn
    options:
      prefix: '&7[&1Helper&7]&1 '
  Mod:
    permissions:
    - essentials.fly
    - essentials.kick
    - essentials.invsee
    - essentials.mute
    - essentials.god
    - essentials.vanish
    - essentials.gamemode
    - essentials.nick
    - essentials.spawn
    - modifyworld.*
    - essentials.ban
    options:
      prefix: '&7[&5Mod&7]&5 '
  SMod:
    permissions:
    - essentials.fly
    - essentials.kick
    - essentials.invsee
    - essentials.mute
    - essentials.god
    - essentials.vanish
    - essentials.ban
    - essentials.gamemode
    - essentials.nick
    - essentials.nick.color
    - essentials.spawn
    - modifyworld.*
    - essentials.ban
    options:
      prefix: '&7[&5&oSenior-Mod&7]&5&o '
schema-version: 1
users:
  5b1f27c0-300d-3607-b300-cdeca74e1d7d:
    permissions:
    - '*'
    options:
      name: Memelos
      group: default
      Owner: group
    group:
    - Owner
  b3b4cd9d-a17b-3483-8121-fc84a894d3fa:
    group:
    - Admin
    options:
      name: IDiedYesterday

 

No its not working