Pex Internal Server Error

groups:
  STAFF:
    inheritance:
    - TrollRank
    permissions:
    - modifyworld.*
    prefix: ''
  Builder:
    permissions:
    - scriptblock.use
    - mineresetlite.*
    - essentials.*
    - essentials.warp.list
    - bukkit.warplist
    - bukkit.warp
    - essentials.warplist
    - essentials.clearinv
    - bukkit.clear
    - essentials.clear
    - ChestShop.*
    - essentials.gamemode
    - bukkit.gamemode
    - essentials.fly
    - essentials.gm
    - essentials.warp
    - essentials.setwarp
    - worldguard.*
    - worldedit.*
    prefix: ''
  C:
    build: true
    permissions:
    - Costlyranks.use
    - jcc.open.table
    - scriptblock.interact.use
    - scriptblock.interact.command
    - scriptblock.interact.command.*
    - scriptblock.interact
    - scirptblock.interact.use
    - essentials.signs.*
    - essentials.afk
    - treeassist.replant
    - treeassist.destroy.*
    - rep.check
    - rep.rankup
    - voxelguest.greylist.override
    - rep.renkup
    - paidranks.normal
    - essentials.build
    - jcc.enchant
    - essentials.spawn
    - essentials.warps.shop
    - essentials.warps.parkour
    - plotmanager.user.buy
    - quickshop.use
    - nametag.group.c
    - essentials.seen
    - voxelguest.greylist.bypass
    - nametag.group.guest
    - scriptblock.interact.
    - scriptblock.walk.use
    - scriptblock.use
    - essentials.signs.heal.use
    - essentials.signs.gamemode.use
    - essentials.balancetop
    - essentials.baltop
    - essentials.chat.url
    - essentials.delhome
    - essentials.helpop
    - essentials.ban.notify
    - essentials.signs.use.warp
    - essentials.list
    - essentials.balance
    - essentials.bal
    - essentials.suicide
    - essentials.pay
    - essentials.mail
    - essentials.msg
    - essentials.help
    - armor.modify
    - chestkeeper.use
    - paidranks.jail
    - modifyworld.*
    - essentials.build.place
    - essentials.build.drop
    - essentials.build.collect
  B:
    permissions:
    - group.B
    - essentials.afk
    - treeassist.replant
    - treeassist.destroy.*
    - rep.check
    - rep.rankup
    - rep.renkup
    - paidranks.normal
    - paidranks.jail
    - nametag.group.b
    inheritance:
    - C
  A:
    permissions:
    - group.A
    - essentials.afk
    - treeassist.replant
    - treeassist.destroy.*
    - rep.check
    - rep.rankup
    - rep.renkup
    - paidranks.normal
    - paidranks.jail
    - nametag.group.a
    inheritance:
    - B
  Elite:
    permissions:
    - group.Elite
    - essentials.afk
    - treeassist.replant
    - treeassist.destroy.*
    - rep.check
    - rep.rankup
    - rep.renkup
    - paidranks.normal
    - paidranks.jail
    - nametag.group.elite
    inheritance:
    - A
  Free:
    permissions:
    - essentials.afk
    - treeassist.replant
    - treeassist.destroy.*
    - rep.check
    - rep.rankup
    - paidranks.normal
    - paidranks.jail
    - nametag.group.free
    inheritance:
    - Elite
  TrialBuilder:
    permissions:
    - modifyworld.*
    - essentials.tp
    - essentials.time.set
    - essentials.gamemode
    - essentials.fly
  Trainee:
    permissions:
    - nametag.group.guardtrainee
    - jcc.distress.send
    - jcc.distress.recive
    - jcc.count.*
    - jail.command.jail
    - pu.sword
    - essentials.togglejail
    - kitmaster.kit.trainee
    - essentials.togglejail.offline
    - kitmaster.kit.trainee
    inheritance:
    - C
  Guard:
    permissions:
    - nametag.group.guard
    - essentials.seen
    - kitmaster.kit.guard
    inheritance:
    - Trainee
  AlphaGuard:
    permissions:
    - nametag.group.alphaguard
    - essentials.spawn
    - essentials.whois
    - essentials.vanish
    - essentials.mute
    - essentials.tp
    - essentials.signs.use.warp
    - essentials.broadcast
    - worldguard.notify
    - kitmaster.kit.Alpha
    inheritance:
    - Guard
  Moderator:
    permissions:
    - essentials.*
    - essentails.kick
    - essentials.invsee
    - essentials.gamemode
    - nametag.group.correctionsofficer
    - essentials.nick
    - essentials.helpop.receive
    - essentials.time
    - jail.command.jail
    - essentials.feed
    - essentials.warps.list
    - essentials.warps.*
    - essentials.whois
    - pu.*
    - essentials.banip
    - essentials.unban
    - essentials.fly
    - essentials.time.set
    - essentials.weather
    - essentials.tphere
    inheritance:
    - AlphaGuard
    - Free
    prefix: '&f'
  Trial-Moderator:
    permissions:
    - essentials.mute
    - essentails.kick
    - essentials.invsee
    - essentials.gamemode
    - essentials.nick
    - essentials.helpop.receive
    - essentials.time
    - essentials.feed
    - essentials.warps.list
    - essentials.warps.*
    - essentials.warps.list
    - essentials.warps.*
    - essentials.whois
    - essentials.fly
    - pu.*
    - essentials.time.set
    - essentials.weather
    - essentials.tphere
    inheritance:
    - AlphaGuard
    - Free
  Admin:
    permissions:
    - nametag.group.Admin
    - '*'
    - modifyworld.*
    - essentials.*
    - -bukkit.stop
    - -essentials.stop
    - -pex.*
    - -vaultrank.rank.Admin
    - -vaultrank.rank.moderator
    - -vaultrank.rank.Owner
    - -vaultrank.rank.HeadAdmin
  HeadAdmin:
    permissions:
    - nametag.group.HeadAdmin
    - pex.*
    inheritance:
    - Admin
  Citizen:
    permissions:
    - essentials.afk
    - treeassist.replant
    - treeassist.destroy.*
    - rep.check
    - paidranks.normal
  Advertiser:
    inheritance:
    - Developer
    options:
      prefix: '[&4Advertiser&r]'
      parent: Developer
  test: {}
  Freedashy:
    permissions:
    - '*'