When I paste this into Group Manager, the server crashes.

groups:
  A:
    default: true
    permissions:
    - prison.mine.normal
    - prison.mine.info.time
    - prisonrankup.rankup
    - prisonrankup.ranks
    - factions.admin
    - factions.autoclaim
    - factions.chat
    - factions.claim
    - factions.deinvite
    - factions.description
    - factions.disband
    - factions.help
    - factions.home
    - factions.invite
    - factions.join
    - factions.kick
    - factions.leave
    - factions.list
    - factions.map
    - factions.open
    - factions.owner
    - factions.power
    - factions.power.any
    - factions.relation
    - factions.sethome
    - factions.show
    - factions.tag
    - factions.title
    - factions.unclaim
    - factions.unclaimall
    - essentials.afk
    - essentials.afk.auto
    - essentials.balance
    - essentials.balance.others
    - essentials.balancetop
    - essentials.clearinventory
    - essentials.delhome
    - essentials.help
    - essentials.helpop
    - essentials.home
    - essentials.ignore
    - essentials.info
    - essentials.kit
    - essentials.kits.Starter
    - essentials.list
    - essentials.mail
    - essentials.mail.send
    - essentials.motd
    - essentials.msg
    - essentials.pay
    - essentials.ping
    - essentials.protect
    - essentials.rules
    - essentials.realname
    - essentials.see
    - essentials.sethome
    - essentials.spawn
    - essentials.suicide
    - essentials.time
    - essentials.tpa
    - essentials.tpaccept
    - essentials.tpdeny
    - essentials.tpahere
    - essentials.build.*
    - essentials.warps.pvp
    - essentials.warps.A
    - essentials.warp
    - essentials.warp.list
    - essentials.signs.use.buy
    - essentials.signs.use.sell
    - essentials.signs.use
    - essentials.itemdb
    - essentials.recipe
    - treeassist.destroy.*
    - treeassist.replant
    - treeassist.toggle
    inheritance: []
    info:
      prefix: '[&1A]'
      build: true
      suffix:
  B:
    defualt: false
    permissions:
    - essentials.warps.B
    inheritance:
    - A
    info:
      prefix: '[&2B]'
      build: true
      suffix:
  C:
    default: false
    permissions:
    - essentials.warps.C
    inheritance:
    - B
    info:
      prefix: '[&3C]'
      build: true
      suffix:
  D:
    default: false
    permissions:
    - essentials.warps.D
    inheritance:
    - C
    info:
      prefix: '[&4D]'
      build: true
      suffix:
  E:
    default: false
    permissions:
    - essentials.warps.E
    inheritance:
    - D
    info:
      prefix: '[&5E]'
      build: true
      suffix:
  F:
    default: false
    permissions:
    - essentials.warps.F
    inheritance:
    - E
    info:
      prefix: '[&6F]'
      build: true
      suffix:
  G:
    default: false
    permissions:
    - essentials.warps.G
    inheritance:
    - F
    info:
      prefix: '[&7G]'
      build: true
      suffix:
  H:
    default: false
    permissions:
    - essentials.warps.H
    inheritance:
    - G
    info:
      prefix: '[&8H]'
      build: true
      suffix:
  I:
    default: false
    permissions:
    - essentials.warps.I
    inheritance:
    - H
    info:
      prefix: '[&9I]'
      build: true
      suffix:
  J:
    default: false
    permissions:
    - essentials.warps.J
    inheritance:
    - I
    info:
      prefix: '[&dJ]'
      build: true
      suffix:
  K:
    default: false
    permissions:
    - essentials.warps.pvp
    - essentials.warps.B
    - essentials.warps.C
    - essentials.warps.D
    - essentials.warps.E
    - essentials.warps.F
    - essentials.warps.G
    - essentials.warps.H
    - essentials.warps.I
    - essentials.warps.J
    - essentials.warps.K
    - prison.mine.normal
    - prison.mine.info.time
    - prisonrankup.rankup
    - prisonrankup.ranks
    - factions.admin
    - factions.autoclaim
    - factions.chat
    - factions.claim
    - factions.deinvite
    - factions.description
    - factions.disband
    - factions.help
    - factions.home
    - factions.invite
    - factions.join
    - factions.kick
    - factions.leave
    - factions.list
    - factions.map
    - factions.open
    - factions.owner
    - factions.power
    - factions.power.any
    - factions.relation
    - factions.sethome
    - factions.show
    - factions.tag
    - factions.title
    - factions.unclaim
    - factions.unclaimall
    - essentials.afk
    - essentials.afk.auto
    - essentials.balance
    - essentials.balance.others
    - essentials.balancetop
    - essentials.clearinventory
    - essentials.delhome
    - essentials.help
    - essentials.helpop
    - essentials.home
    - essentials.ignore
    - essentials.info
    - essentials.kit
    - essentials.kits.Starter
    - essentials.list
    - essentials.mail
    - essentials.mail.send
    - essentials.motd
    - essentials.msg
    - essentials.pay
    - essentials.ping
    - essentials.protect
    - essentials.rules
    - essentials.realname
    - essentials.see
    - essentials.sethome
    - essentials.spawn
    - essentials.suicide
    - essentials.time
    - essentials.tpa
    - essentials.tpaccept
    - essentials.tpdeny
    - essentials.tpahere
    - essentials.build.*
    - essentials.warps.pvp
    - essentials.warps.A
    - essentials.warp
    - essentials.warp.list
    - essentials.signs.use.buy
    - essentials.signs.use.sell
    - essentials.signs.use
    - essentials.itemdb
    - essentials.recipe
    - treeassist.destroy.*
    - treeassist.replant
    - treeassist.toggle
    inheritance: []
    info:
      prefix: '[&fK]'
      build: true
      suffix:
  L:
    default: false
    permissions:
    - essentials.warps.L
    inheritance:
    - K
    info:
      prefix: '[&1L]'
      build: true
      suffix:
  M:
    default: false
    permissions:
    - essentials.warps.M
    inheritance:
    - L
    info:
      prefix: '[&2M]'
      build: true
      suffix:
  N:
    default: false
    permissions:
    - essentials.warps.N
    inheritance:
    - M
    info:
      prefix: '[&3N]'
      build: true
      suffix:
  O:
    default: false
    permissions:
    - essentials.warps.O
    inheritance:
    - N
    info:
      prefix: '[&9O]'
      build: true
      suffix:
  P:
    default: false
    permissions:
    - essentials.warps.P
    inheritance:
    - O
    info:
      prefix: '[&5P]'
      build: true
      suffix:
  Q:
    default: false
    permissions:
    - essentials.warps.Q
    - essentials.warps.pvp
    - essentials.warps.B
    - essentials.warps.C
    - essentials.warps.D
    - essentials.warps.E
    - essentials.warps.F
    - essentials.warps.G
    - essentials.warps.H
    - essentials.warps.I
    - essentials.warps.J
    - essentials.warps.K
    - essentials.warps.L
    - essentials.warps.M
    - essentials.warps.N
    - essentials.warps.O
    - essentials.warps.P
    - prison.mine.normal
    - prison.mine.info.time
    - prisonrankup.rankup
    - prisonrankup.ranks
    - factions.admin
    - factions.autoclaim
    - factions.chat
    - factions.claim
    - factions.deinvite
    - factions.description
    - factions.disband
    - factions.help
    - factions.home
    - factions.invite
    - factions.join
    - factions.kick
    - factions.leave
    - factions.list
    - factions.map
    - factions.open
    - factions.owner
    - factions.power
    - factions.power.any
    - factions.relation
    - factions.sethome
    - factions.show
    - factions.tag
    - factions.title
    - factions.unclaim
    - factions.unclaimall
    - essentials.afk
    - essentials.afk.auto
    - essentials.balance
    - essentials.balance.others
    - essentials.balancetop
    - essentials.clearinventory
    - essentials.delhome
    - essentials.help
    - essentials.helpop
    - essentials.home
    - essentials.ignore
    - essentials.info
    - essentials.kit
    - essentials.kits.Starter
    - essentials.list
    - essentials.mail
    - essentials.mail.send
    - essentials.motd
    - essentials.msg
    - essentials.pay
    - essentials.ping
    - essentials.protect
    - essentials.rules
    - essentials.realname
    - essentials.see
    - essentials.sethome
    - essentials.spawn
    - essentials.suicide
    - essentials.time
    - essentials.tpa
    - essentials.tpaccept
    - essentials.tpdeny
    - essentials.tpahere
    - essentials.build.*
    - essentials.warps.pvp
    - essentials.warps.A
    - essentials.warp
    - essentials.warp.list
    - essentials.signs.use.buy
    - essentials.signs.use.sell
    - essentials.signs.use
    - essentials.itemdb
    - essentials.recipe
    - treeassist.destroy.*
    - treeassist.replant
    - treeassist.toggle
    inheritance:
    - P
    info:
      prefix: '[&3Q]'
      build: true
      suffix:
  R:
    default: false
    permissions:
    - essentials.warps.R
    inheritance:
    - Q
    info:
      prefix: '[&5R]'
      build: true
      suffix:
  S:
    default: false
    permissions:
    - essentials.warps.S
    inheritance:
    - R
    info:
      prefix: '[&8S]'
      build: true
      suffix:
  T:
    default: false
    permissions:
    - essentials.warps.T
    inheritance:
    - S
    info:
      prefix: '[&1T]'
      build: true
      suffix:
  U:
    default: false
    permissions:
    - essentials.warps.U
    - essentials.warps.Q
    - essentials.warps.pvp
    - essentials.warps.B
    - essentials.warps.C
    - essentials.warps.D
    - essentials.warps.E
    - essentials.warps.F
    - essentials.warps.G
    - essentials.warps.H
    - essentials.warps.I
    - essentials.warps.J
    - essentials.warps.K
    - essentials.warps.L
    - essentials.warps.M
    - essentials.warps.N
    - essentials.warps.O
    - essentials.warps.P
    - essentials.warps.R
    - essentials.warps.S
    - essentials.warps.T
    - prison.mine.normal
    - prison.mine.info.time
    - prisonrankup.rankup
    - prisonrankup.ranks
    - factions.admin
    - factions.autoclaim
    - factions.chat
    - factions.claim
    - factions.deinvite
    - factions.description
    - factions.disband
    - factions.help
    - factions.home
    - factions.invite
    - factions.join
    - factions.kick
    - factions.leave
    - factions.list
    - factions.map
    - factions.open
    - factions.owner
    - factions.power
    - factions.power.any
    - factions.relation
    - factions.sethome
    - factions.show
    - factions.tag
    - factions.title
    - factions.unclaim
    - factions.unclaimall
    - essentials.afk
    - essentials.afk.auto
    - essentials.balance
    - essentials.balance.others
    - essentials.balancetop
    - essentials.clearinventory
    - essentials.delhome
    - essentials.help
    - essentials.helpop
    - essentials.home
    - essentials.ignore
    - essentials.info
    - essentials.kit
    - essentials.kits.Starter
    - essentials.list
    - essentials.mail
    - essentials.mail.send
    - essentials.motd
    - essentials.msg
    - essentials.pay
    - essentials.ping
    - essentials.protect
    - essentials.rules
    - essentials.realname
    - essentials.see
    - essentials.sethome
    - essentials.spawn
    - essentials.suicide
    - essentials.time
    - essentials.tpa
    - essentials.tpaccept
    - essentials.tpdeny
    - essentials.tpahere
    - essentials.build.*
    - essentials.warps.pvp
    - essentials.warps.A
    - essentials.warp
    - essentials.warp.list
    - essentials.signs.use.buy
    - essentials.signs.use.sell
    - essentials.signs.use
    - essentials.itemdb
    - essentials.recipe
    - treeassist.destroy.*
    - treeassist.replant
    - treeassist.toggle
    inheritance:
    - T
    info:
      prefix: '[&6U]'
      build: true
      suffix:
  V:
    default: false
    permissions:
    - essentials.warps.V
    inheritance:
    - U
    info:
      prefix: '[&4V]'
      build: true
      suffix:
  W:
    default: false
    permissions:
    - essentials.warps.W
    inheritance:
    - V
    info:
      prefix: '[&fW]'
      build: true
      suffix:
  X:
    default: false
    permissions:
    - essentials.warps.X
    inheritance:
    - W
    info:
      prefix: '[&a&klX&kl]'
      build: true
      suffix:
  Y:
    default: false
    permissions:
    - essentials.warps.Y
    - essentials.warps.U
    - essentials.warps.Q
    - essentials.warps.pvp
    - essentials.warps.B
    - essentials.warps.C
    - essentials.warps.D
    - essentials.warps.E
    - essentials.warps.F
    - essentials.warps.G
    - essentials.warps.H
    - essentials.warps.I
    - essentials.warps.J
    - essentials.warps.K
    - essentials.warps.L
    - essentials.warps.M
    - essentials.warps.N
    - essentials.warps.O
    - essentials.warps.P
    - essentials.warps.R
    - essentials.warps.S
    - essentials.warps.T
    - essentials.warps.X
    - essentials.warps.V
    - essentials.warps.W
    - prison.mine.normal
    - prison.mine.info.time
    - prisonrankup.rankup
    - prisonrankup.ranks
    - factions.admin
    - factions.autoclaim
    - factions.chat
    - factions.claim
    - factions.deinvite
    - factions.description
    - factions.disband
    - factions.help
    - factions.home
    - factions.invite
    - factions.join
    - factions.kick
    - factions.leave
    - factions.list
    - factions.map
    - factions.open
    - factions.owner
    - factions.power
    - factions.power.any
    - factions.relation
    - factions.sethome
    - factions.show
    - factions.tag
    - factions.title
    - factions.unclaim
    - factions.unclaimall
    - essentials.afk
    - essentials.afk.auto
    - essentials.balance
    - essentials.balance.others
    - essentials.balancetop
    - essentials.clearinventory
    - essentials.delhome
    - essentials.help
    - essentials.helpop
    - essentials.home
    - essentials.ignore
    - essentials.info
    - essentials.kit
    - essentials.kits.Starter
    - essentials.list
    - essentials.mail
    - essentials.mail.send
    - essentials.motd
    - essentials.msg
    - essentials.pay
    - essentials.ping
    - essentials.protect
    - essentials.rules
    - essentials.realname
    - essentials.see
    - essentials.sethome
    - essentials.spawn
    - essentials.suicide
    - essentials.time
    - essentials.tpa
    - essentials.tpaccept
    - essentials.tpdeny
    - essentials.tpahere
    - essentials.build.*
    - essentials.warps.pvp
    - essentials.warps.A
    - essentials.warp
    - essentials.warp.list
    - essentials.signs.use.buy
    - essentials.signs.use.sell
    - essentials.signs.use
    - essentials.itemdb
    - essentials.recipe
    - treeassist.destroy.*
    - treeassist.replant
    - treeassist.toggle
    inheritance:
    - X
    info:
      prefix: '[&b&klY&kl]'
      build: true
      suffix:
  Z:
    default: false
    permissions:
    - essentials.warps.Z
    inheritance:
    - Y
    info:
      prefix: '[&c&klZ&kl]'
      build: true
      suffix:
  Free:
    default: false
    permissions:
    - essentials.warps.Free
    - essentials.warps.Y
    - essentials.warps.U
    - essentials.warps.Q
    - essentials.warps.pvp
    - essentials.warps.B
    - essentials.warps.C
    - essentials.warps.D
    - essentials.warps.E
    - essentials.warps.F
    - essentials.warps.G
    - essentials.warps.H
    - essentials.warps.I
    - essentials.warps.J
    - essentials.warps.K
    - essentials.warps.L
    - essentials.warps.M
    - essentials.warps.N
    - essentials.warps.O
    - essentials.warps.P
    - essentials.warps.R
    - essentials.warps.S
    - essentials.warps.T
    - essentials.warps.X
    - essentials.warps.V
    - essentials.warps.W
    - essentials.warps.Z
    - prison.mine.normal
    - prison.mine.info.time
    - prisonrankup.rankup
    - prisonrankup.ranks
    - factions.admin
    - factions.autoclaim
    - factions.chat
    - factions.claim
    - factions.deinvite
    - factions.description
    - factions.disband
    - factions.help
    - factions.home
    - factions.invite
    - factions.join
    - factions.kick
    - factions.leave
    - factions.list
    - factions.map
    - factions.open
    - factions.owner
    - factions.power
    - factions.power.any
    - factions.relation
    - factions.sethome
    - factions.show
    - factions.tag
    - factions.title
    - factions.unclaim
    - factions.unclaimall
    - essentials.afk
    - essentials.afk.auto
    - essentials.balance
    - essentials.balance.others
    - essentials.balancetop
    - essentials.clearinventory
    - essentials.delhome
    - essentials.help
    - essentials.helpop
    - essentials.home
    - essentials.ignore
    - essentials.info
    - essentials.kit
    - essentials.kits.Starter
    - essentials.list
    - essentials.mail
    - essentials.mail.send
    - essentials.motd
    - essentials.msg
    - essentials.pay
    - essentials.ping
    - essentials.protect
    - essentials.rules
    - essentials.realname
    - essentials.see
    - essentials.sethome
    - essentials.spawn
    - essentials.suicide
    - essentials.time
    - essentials.tpa
    - essentials.tpaccept
    - essentials.tpdeny
    - essentials.tpahere
    - essentials.build.*
    - essentials.warps.pvp
    - essentials.warps.A
    - essentials.warp
    - essentials.warp.list
    - essentials.signs.use.buy
    - essentials.signs.use.sell
    - essentials.signs.use
    - essentials.itemdb
    - essentials.recipe
    - treeassist.destroy.*
    - treeassist.replant
    - treeassist.toggle
    inheritance:
    - Z
    info:
      prefix: '[&fF&cr&ee&ee]'
      build: true
      suffix:
  Youtube:
    default: false
    permissions:
    - essentials.warps.Youtube
    - essentials.kit.Youtube
    - essentials.hat
    - essentials.feed
    - essentials.chest
    - essentials.keepOnDeath
    inheritance: []
    info:
      prefix:
      build: true
      suffix: '&0[4You&ftuber&0]'
  Stone:
    default: false
    permisions:
    - essentials.warps.Stone
    - alphachest.chest
    - alphachest.keepOnDeath
    - essentials.kit.Stone
    - essentials.feed
    - essentials.hat
    - essentials.stack
    inheritance: []
    info:
      prefix:
      build: true
      suffix: '[&8Stone]'
  Iron:
    default: false
    permissions:
    - alphachest.chest
    - alphachest.keepOnDeath
    - essentials.warps.Iron
    - essentials.workbench
    - essentials.kit.Iron
    - essentials.feed
    - essentials.hat
    - essentials.stack
    inheritance:[]
    info:
      prefix:
      build: true
      suffix: '[&fIron]'
  Redstone:
    default: false
    permissions:
    - alphachest.chest
    - alphachest.keepOnDeath
    - essentials.feed
    - essentials.kit.Redstone
    - essentials.warps.Redstone
    - essentials.workbench
    - essentials.hat
    - essentials.stack
    inheritance: []
    info:
      prefix:
      build: true
      suffix: '[&4Redstone]'
  Gold:
    default: false
    permissions:
    - alphachest.chest
    - alphachest.keepOnDeath
    - essentials.feed
    - essentials.kit.Gold
    - essentials.warps.Gold
    - essentials.workbench
    - essentials.hat
    - essentials.stack
    inheritance: []
    info:
      prefix:
      build: true
      suffix: '[&6Gold]
  Diamond:
    default: false
    permissions:
    - alphachest.chest
    - alphachest.keepOnDeath
    - essentials.feed
    - essentials.kit.Diamond
    - essentials.warps.Diamond
    - essentials.workbench
    - essentials.kit.Color
    - essentials.msg.color
    - essentials.hat
    - essentials.stack
    inheritance: []
    info:
      prefix:
      build: true
      suffix: '[&3Diamond]
  Emerald:
    default: false
    permissions:
    - alphachest.chest
    - alphachest.keepOnDeath
    - essentials.feed
    - essentials.kit.Emerald
    - essentials.warps.Emerald
    - essentials.workbench
    - essentials.kit.Color
    - essentials.msg.color
    - essentials.hat
    - essentials.stack
    inheritance: []
    info:
      prefix:
      build: true
      suffix: '[&2Emerald]
  Bedrock:
    default: false
    permissions:
    - alphachest.chest
    - alphachest.keepOnDeath
    - essentials.feed
    - essentials.kit.Bedrock
    - essentials.warps.Bedrock
    - essentials.workbench
    - essentials.msg.color
    - essentials.nick
    - essentials.nick.color
    - essentials.hat
    - essentials.stack
    - essentials.kit.Color
    inheritance: []
    info:
      prefix:
      build: true
      suffix: '&f[&8B&7e&8d&7r&8o&7c&8k&f]
  Helper:
    default: false
    permissions:
    - essentials.customtext
    inheritance: []
    info:
      prefix:
      build:
      suffix: '&7[&6hel&fper&7]
  Mod:
    default: false
    permissions:
    - essentials.tp
    - essentials.time.set
    - essentials.time
    - essentials.weather
    - essentials.kick
    - essentials.seen
    - essentials.seen.banreason
    - essentials.nick
    inheritance:
    - Helper
    info:
      prefix:
      build: true
      suffix: '&a[&cModerator&a]'
  Admin:
    default: false
    permissions:
    - essentials.tphere
    - essentials.give
    - essentials.feed
    - essentials.tp
    - essentials.tempban
    - essentials.fly
    inheritance:
    - Mod
    info:
      prefix:
      build: true
      suffix: '&2[&1Admin&2]'
  Head-Admin:
    default: false
    permissions:
    - essentials.ban
    - essentials.banip
    - essentials.gamemode
    - essentials.fly
    - essentials.seen.ipsearch
    - essentials.seen.extra
    - essentials.msg.format
    - essentials.msg.url
    - essentials.msg.color
    - worldedit.clipboard.cut
    - worldedit.clipboard.copy
    inheritance:
    - Admin
    info:
      prefix:
      build: true
      suffix: '&d[&4Head-Admin&d]'
  Co-Owner:
    default: false
    permissions:
    - '*'
    inheritance:
    - Head-Admin
    info:
      prefix: '&b[&aCo&7-&dOwner&b]'
      build: true
      suffix:
  Owner:
    default: false
    permissions:
    - '*'
    inheritance:
    - Co-Owner
    info:
      prefix: '[&bO&ew&bn&ee&br]'
      build: true
      suffix: