Bukkit

People cant Change mobs this is what it looks like what is rong with it please help!?

groups:
  Default:
    default: true
    permissions:
    - towny.wild.*
    - towny.
    - creativegates.use: true
    - towny.admin
    - towny.claimed.*
    - towny.town*
    - towny.town.name
    - towny.nation.*
    - essentials.signs.create.trade
    - essentials.signs.use.buy
    - essentials.signs.use.balance
    - essentials.signs.use.warp
    - essentials.signs.use.weather
    - essentials.signs.use.trade
    - essentials.signs.use.time
    - essentials.signs.use.sell
    - essentials.signs.use.kit
    - essentials.signs.use.heal
    - essentials.signs.use.enchant
    - essentials.signs.use.disposal
    - essentials.spawn
    - essentials.rules
    - essentials.motd
    - essentials.list
    - essentials.helpop
    - essentials.help
    - modifyworld.*
    - essentials.help
    - essentials.balance
    - essentials.balance.others
    - essentials.balancetop
    - essentials.home
    - essentials.ignore
    - essentials.mail
    - essentials.mail.send
    - essentials.me
    - essentials.msg
    - essentials.pay
    - essentials.sethome
    - essentials.tpa
    - essentials.tpaccept
    - essentials.tpahere
    - essentials.tpdeny
    - essentials.warp
    - essentials.warp.list
    - lwc.create
    - lwc.remove
    - lwc.info
    - lwc.modify
    - tombstone.use
    - tombstone.freechest
    - tombstone.large
    - tombstone.lwc
    - tombstone.sign
    - tombstone.freesign
    - tombstone.quickloot
    - preciousstones.benefit.*
    - preciousstones.whitelist.*
    - multiworld.minium
    prefix: '&7[G]'
    options:
      build: true
      rank: '1000'
  Builder:
    permissions:
    - essentials.balance
    - essentials.balance.others
    - essentials.balancetop
    - essentials.home
    - essentials.ignore
    - essentials.mail
    - essentials.mail.send
    - essentials.me
    - essentials.msg
    - essentials.pay
    - essentials.sethome
    - essentials.tpa
    - essentials.tpaccept
    - essentials.tpahere
    - essentials.tpdeny
    - essentials.warp
    - lwc.create
    - lwc.remove
    - lwc.info
    - lwc.modify
    - tombstone.use
    - tombstone.freechest
    - tombstone.large
    - tombstone.lwc
    - tombstone.sign
    - tombstone.freesign
    - tombstone.quickloot
    - preciousstones.benefit.*
    - preciousstones.whitelist.*
    - multiworld.minium
    inheritance:
    - default
    prefix: '&7[G+]'
    options:
      build: true
      rank: '500'
  M:
    permissions:
    - mobdisguise.mob[chicken]
    - essentials.sethome.multihome
    - essentials.sethome.multihome.[2]
    inheritance:
    - default
    prefix: '&2[M]'
    options:
      build: true
      rank: '499'
  M+:
    permissions:
    - mobdisguise.mob[zombie]
    - mobdisguise.mob[skeletion]
    - essentials.sethome.multihome.[4]
    inheritance:
    - M
    prefix: '&2[M+]'
    options:
      build: true
      rank: '498'
  ViP:
    permissions:
    - mobdisquise.mob[spider]
    - mobdisquise.mob[wolf]
    inheritance:
    - M+
    prefix: '&2[ViP]'
    options:
      build: true
      rank: '497'
  ViP+:
    permissions:
    - mobdisquise.mob[cat]
    - mobdisquise.mob[creeper]
    - essentials.repair
    - essentials.heal
    inheritance:
    - ViP
    prefix: '&2[ViP+]'
    options:
      build: true
      rank: '496'
  Pro:
    permissions:
    - essentials.nick
    - mobisquise.mob[slime]
    - essentials.god
    inheritance:
    - ViP+
    prefix: '&2[Pro]'
    options:
      build: true
      rank: '495'
  Moderator:
    permissions:
    - essentials.kick
    - essentials.kick.notify
    - essentials.protect.alerts
    - essentials.protect.ownerinfo
    - essentials.tp
    - essentials.whois
    - essentials.world
    - permissions.manage.membership
    - logblock.tools.toolblock
    - logblock.tools.tool
    - logblock.tp
    - logblock.me
    - logblock.rollback
    inheritance:
    - builder
    prefix: '&3[Mod]'
    options:
      build: true
      rank: '200'
  Builder+:
    permissions:
    - essentials.gamemode
    - essentials.fly
    inheritance:
    - Builder
    prefix: '&2[B+]'
    options:
      build: true
      rank: '250'
  Admin:
    permissions:
    - '*'
    - AdminChat.everything
    - stab.Admin
    inheritance:
    - moderator
    prefix: '&c[Co-Owner]'
    options:
      build: true
      rank: '100'
  Owner:
    permissions:
    - worldportal.create
    - '*'
    inheritance:
    - admin
    prefix: '&9[Owner]'
    options:
      build: true
      rank: '50'
users:
  parker007:
    group:
    - Owner
  cspltler82:
    group:
    - TS
    - VIP
  formalmobs:
    group:
    - TS
    - Moderator
  wuensch:
    group:
    - Admin
  xxcommandodogxx:
    group:
    - Builder
  xxcommandogodxx:
    group:
    - Builder
  xxcomandogodxx:
    group:
    - Default
  cal190678:
    group:
    - Builder
  frillybob:
    group:
    - Builder
  Dasko222:
    group:
    - Builder
  cspitler82:
    group:
    - Builder
  drschroeck:
    group:
    - Builder
  wallboy:
    group:
    - VIP
  xspudz:
    group:
    - Builder
  legoben1998:
    group:
    - Builder
  dpmase:
    group:
    - Builder
  xxchaysexx:
    group:
    - Builder
  xxXchayseXxx:
    group:
    - Builder
  Scar_H87:
    group:
    - Builder
  sauvey9900:
    group:
    - Builder
  as334:
    group:
    - Builder
  Naverb:
    group:
    - Builder
  pwallboy:
    group:
    - Builder
  MusicKing2:
    group:
    - Builder
  Connodebom:
    group:
    - Builder
  xfaze_killz:
    group:
    - Builder

I believe that the permissions are:

mobdisguise.mob.<mobname>

NOT

mobdisguise.mob.[mobname]

So for chicken do: mobdisguise.mob.chicken