Pex Keeps Crashing Server with this config

groups:
  Starter:
    options:
      default: 'true'
      prefix: '&7&l[&3Starter&7&l]&r'
    permissions:
    - playervaults.amount.1
    - playervault.1
    - automessage.receive.regular
    - essentials.enderchest
    - essentials.ec
    - -essentials.sell.*
    - -essentials.sell
    - antispam.use
    - askyblock.biomes.mushroom_island
    - essentials.balance
    - essentials.message
    - essentials.help
    - spigot.plugins
    - shopguiplus.sell.hand.all
    - shopguiplus.sell.hand
    - shopguiplus.shop
    - Essentials.spawn
    - Essentials.afk
    - Essentials.afk.auto
    - Essentials.back
    - Essentials.back.ondeath
    - Essentials.balance
    - Essentials.balance.others
    - Essentials.balancetop
    - Essentials.build
    - Essentials.chat.question
    - Essentials.compass
    - Essentials.depth
    - Essentials.delhome
    - Essentials.getpos
    - Essentials.help
    - Essentials.helpop
    - Essentials.home
    - Essentials.ignore
    - Essentials.kit
    - Essentials.kits.tools
    - Essentials.list
    - Essentials.mail
    - Essentials.mail.send
    - Essentials.me
    - Essentials.msg
    - Essentials.msg.color
    - Essentials.near
    - Essentials.pay
    - Essentials.ping
    - Essentials.r
    - Essentials.rules
    - Essentials.realname
    - Essentials.sell
    - Essentials.sethome
    - Essentials.signs.use.balance
    - Essentials.signs.use.buy
    - Essentials.signs.use.disposal
    - Essentials.signs.use.kit
    - Essentials.signs.use.mail
    - Essentials.signs.use.sell
    - Essentials.signs.use.time
    - Essentials.signs.use.trade
    - Essentials.signs.use.warp
    - Essentials.spawn
    - Essentials.tpa
    - Essentials.tpaccept
    - Essentials.tpahere
    - Essentials.tpdeny
    - Essentials.warp
    - Essentials.warp.list
  owner:
    permissions:
    - '*'
    options:
      prefix: '&7&l[&aOwner&7&l]&r'
  Trainee:
      permissions:
    - playervaults.amount.1
    - colorchat.*
    - ab.mute.temp
    - essentials.tp
    - essentials.vanish
    - essentials.teleport
    - essentials.fly
    inheritance:
    - Starter
    options:
      prefix: '&7&l[&eTrainee&7&l]&r'

  mod:
    inheritance:
    - mod
    - chatmod
    options:
      prefix: ' &7&l[&6Moderator&7&l] &r'
  Admin:
    permissions:
    - ab.warn.perma
    - ab.mute.temp
    - ab.mute.perma
    - ab.ban.undo
    - ab.ban.temp
    - ab.ban.perma
    - ab.kick.use
    - essentials.tpo
    - essentials.tp
    - essentials.fly
    - essentials.gamemode.*
    options:
      prefix: ' &7&l[&cAdmin&7&l]&r '
    inheritance:
    - mod
  chatmod:
    permissions:
    - staff.*
    options:
      prefix: ' &7&l[&aChat&7-&aMod&7&l]&r '
    inheritance:
    - helper
  helper:
    permissions:
    options:
      prefix: ' &7&l[&9Helper&7&l] &r'
    inheritance:
    - Trainee
schema-version: 1
users:
  add4bf94-5b83-4b75-93f2-af91c577a72a:
    permissions:
    - devhider.admin
    - devhider.see.*
    - shopguiplus.shop
    - '*'
    options:
      name: 0G_Ghost
    group:
    - owner
  f1943ec5-26cc-433a-85f3-25f396ad321e:
    group:
    - Starter
    options:
      name: ItsMeJay
  e7a467f2-11c8-4478-b5d3-b0b73c3c2b0c:
    group:
    - Trainee
    options:
      name: ItzFlame2K
  9a213b5d-c71a-4dd6-9d72-8a221b90ddd9:
    group:
    - Trainee
    permissions:
    - essentials.tp
    - essentials.tp.*
    options:
      name: AppTheCat
  59c29b08-0712-471b-b49c-dd28dcecf1b8:
    group:
    - Trainee
    options:
      name: Motgoos
  767804fc-c113-4af6-88f0-7d8f7d4feba5:
    group:
    - Trainee
    options:
      name: supermoo7000
  ca4af801-185f-43b8-9df6-e839502443d8:
    group:
    - Trainee
    options:
      name: PrinceSparrow
  dad2de1f-bbe0-4e57-badb-00abb2eff528:
    group:
    - Starter
    options:
      name: ExoBoi
  srgrago:
    group:
    - Starter
  srgdrago:
    group:
    - Starter
  tylerthereaper:
    group:
    - Starter
  b47fcd10-c368-4cfc-a48b-0f72afe3a551:
    group:
    - Trainee
    options:
      name: Midnights_dream
    permissions:
    - spigot.killall
    - essentials.killall
    - essentials.killall.mobs