Player list name already assigned?

16:10:20 [SEVERE] Could not pass event PLAYER_JOIN to Essentials
java.lang.IllegalArgumentException: ?5[Administrator is already assigned as a player list name for someone
at org.bukkit.craftbukkit.entity.CraftPlayer.setPlayerListName(CraftPlayer.java:147)
at com.earth2me.essentials.PlayerExtension.setPlayerListName(PlayerExtension.java)
at com.earth2me.essentials.User.setDisplayNick(User.java:287)
at com.earth2me.essentials.EssentialsPlayerListener.onPlayerJoin(EssentialsPlayerListener.java:169)
at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:260)
at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:58)
at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:339)
at net.minecraft.server.ServerConfigurationManager.c(ServerConfigurationManager.java:129)
at net.minecraft.server.NetLoginHandler.b(NetLoginHandler.java:113)
at net.minecraft.server.NetLoginHandler.a(NetLoginHandler.java:39)
at net.minecraft.server.NetworkListenThread.a(SourceFile:94)
at net.minecraft.server.MinecraftServer.w(MinecraftServer.java:516)
at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:414)
at net.minecraft.server.ThreadServerApplication.run(SourceFile:457)
16:10:20 [SEVERE] Could not pass event PLAYER_TELEPORT to Essentials
java.lang.IllegalArgumentException: ?5[Administrator is already assigned as a player list name for someone
at org.bukkit.craftbukkit.entity.CraftPlayer.setPlayerListName(CraftPlayer.java:147)
at com.earth2me.essentials.PlayerExtension.setPlayerListName(PlayerExtension.java)
at com.earth2me.essentials.User.setDisplayNick(User.java:287)
at com.earth2me.essentials.EssentialsPlayerListener.onPlayerTeleport(EssentialsPlayerListener.java:259)
at org.bukkit.plugin.java.JavaPluginLoader$9.execute(JavaPluginLoader.java:316)
at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:58)
at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:339)
at net.minecraft.server.NetServerHandler.a(NetServerHandler.java:390)
at net.minecraft.server.NetLoginHandler.b(NetLoginHandler.java:114)
at net.minecraft.server.NetLoginHandler.a(NetLoginHandler.java:39)
at net.minecraft.server.NetworkListenThread.a(SourceFile:94)
at net.minecraft.server.MinecraftServer.w(MinecraftServer.java:516)
at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:414)
at net.minecraft.server.ThreadServerApplication.run(SourceFile:457)
16:10:24 [SEVERE] Could not pass event PLAYER_CHAT to Essentials
java.lang.IllegalArgumentException: ?5[Administrator is already assigned as a player list name for someone
at org.bukkit.craftbukkit.entity.CraftPlayer.setPlayerListName(CraftPlayer.java:147)
at com.earth2me.essentials.PlayerExtension.setPlayerListName(PlayerExtension.java)
at com.earth2me.essentials.User.setDisplayNick(User.java:287)
at com.earth2me.essentials.EssentialsPlayerListener.onPlayerChat(EssentialsPlayerListener.java:79)
at org.bukkit.plugin.java.JavaPluginLoader$6.execute(JavaPluginLoader.java:295)
at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:58)
at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:339)
at net.minecraft.server.NetServerHandler.chat(NetServerHandler.java:726)
at net.minecraft.server.NetServerHandler.a(NetServerHandler.java:714)
at net.minecraft.server.Packet3Chat.a(Packet3Chat.java:33)
at net.minecraft.server.NetworkManager.b(NetworkManager.java:226)
at net.minecraft.server.NetServerHandler.a(NetServerHandler.java:92)
at net.minecraft.server.NetworkListenThread.a(SourceFile:108)
at net.minecraft.server.MinecraftServer.w(MinecraftServer.java:516)
at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:414)
at net.minecraft.server.ThreadServerApplication.run(SourceFile:457)

# Group inheritance
# any inherited groups prefixed with a g: are global groups
# These groups are defined in the globalgroups.yml
# and can be inherited in any worlds groups/users.yml.
#
# Groups without the g: prefix are groups local to this world
# and defined in the this groups.yml file.

groups:
Noob:
default: true
permissions:
- -bukkit.command.kill
- essentials.sethome
- essentials.home
- essentials.spawn
- essentials.tp
- essentials.warp.*
- essentials.signs.use.warp
- essentials.signs.use.trade
- essentials.signs.use.sell
- essentials.signs.use.disposal
- essentials.signs.use.buy
- essentials.portal
- essentials.warp.list
- essentials.back
- essentials.spawn
- essentials.motd
- essentials.mail.send
- essentials.mail
- essentials.compass
- essentials.tree
- essentials.kit
- essentials.bigtree
- essentials.signs.use.free
- essentials.warp
- essentials.helpop
- essentials.suicide
- essentials.time
- essentials.time.set
- essentials.afk
- essentials.weather

inheritance: []

info:
prefix: '&a[Noob]&8'
build: true
suffix: ''

SpecialForces:
default: false
permissions:
- worldedit.extinguish
- essentials.jails
- essentials.togglejail
inheritance:
- noob
info:
prefix: '&6[Special Forces]&8'
build: true
suffix: ''

Creator:
default: false
permissions:
- worldedit.*
inheritance:
- noob
- specialforces
- bukkit.command.gamemode
- worldguard.region.define
- worldguard.region.redefine.own
- worldguard.region.select.own.*
- worldguard.region.info.own
- worldguard.region.addowner.own.*
- worldguard.region.removeowner.own.*
- worldguard.region.addmember.own.*
- worldguard.region.removemember.own.*
info:
prefix: '&3[Creator]&8'
build: true
suffix: ''

Moderator:
default: false
permissions:
- essentials.signs.use.weather
- essentials.signs.use.warp
- essentials.signs.use.trade
- essentials.signs.use.time
- essentials.signs.use.spawnmob
- essentials.signs.use.sell
- essentials.signs.use.mail
- essentials.signs.use.heal
- essentials.signs.use.free
- essentials.signs.use.disposal
- essentials.signs.use.buy
- essentials.signs.use.balance
- essentials.signs.create.weather
- essentials.signs.create.warp
- essentials.signs.create.trade
- essentials.signs.create.time
- essentials.signs.create.sell
- essentials.signs.create.mail
- essentials.signs.create.heal
- essentials.signs.create.free
- essentials.signs.create.disposal
- essentials.signs.create.buy
- essentials.signs.create.balance
- essentials.signs.color
- essentials.signs.break.weather
- essentials.signs.break.warp
- essentials.signs.break.trade
- essentials.signs.break.time
- essentials.signs.break.spawnmob
- essentials.signs.break.sell
- essentials.signs.break.mail
- essentials.signs.break.heal
- essentials.signs.break.free
- essentials.signs.break.disposal
- essentials.signs.break.buy
- essentials.signs.break.balance
- essentials.protect.ownerinfo
- essentials.joinfullserver
- essentials.chat.spy
- essentials.chat.shout
- essentials.chat.question
- essentials.chat.color
- essentials.world
- essentials.portal
- essentials.warp.otherplayers
- essentials.warp.list
- essentials.warp.*
- essentials.warp
- essentials.tpohere
- essentials.tp
- essentials.top
- essentials.setwarp
- essentials.sethome.multiple.unlimited
- essentials.sethome
- essentials.jump
- essentials.home.others
- essentials.home
- essentials.back.ondeath
- essentials.back
- essentials.spawn
- essentials.weather
- essentials.unban
- essentials.togglejail
- essentials.jail.exempt
- essentials.thunder
- essentials.tempban.exempt
- essentials.tempban
- essentials.spawnmob.*
- essentials.spawnmob
- essentials.socialspy
- essentials.ping
- essentials.mute.exempt
- essentials.mute
- essentials.lightning
- essentials.kill
- essentials.kick.notify
- essentials.kick.exempt
- essentials.kick
- essentials.jails
- essentials.fireball
- essentials.ext
- essentials.clearinventory
- essentials.butcher
- essentials.burn
- essentials.broadcast
- essentials.ban.offline
- essentials.ban.notify
- essentials.ban.exempt
- essentials.ban
- essentials.whois
- essentials.suicide
- essentials.spawner.*
- essentials.spawner
- essentials.seen
- essentials.rules
- essentials.realname
- essentials.msg
- essentials.motd
- essentials.mail.send
- essentials.mail
- essentials.list
- essentials.ignore
- essentials.helpop.receive
- essentials.help
- essentials.getpos
- essentials.depth
- essentials.compass
- essentials.afk.kickexempt
- essentials.afk
- essentials.worth
- essentials.sell
- essentials.pay
- essentials.eco
- essentials.balancetop
- essentials.balance.others
- essentials.balance
- essentials.tree
- essentials.time.set
- essentials.time
- essentials.kit.*
- essentials.kit
- essentials.god
- essentials.gamemode
- essentials.gamemode.others
- essentials.break.bedrock
- essentials.bigtree
- worldedit.*
- announcer.add
- announcer.broadcast
- announcer.delete
- announcer.moderate
- worldguard.*
- essentials.give
- essentials.give.item-<itemname>
- essentials.give.item-all
- essentials.give.item-[itemid]


inheritance:
- creator
- noob
- specialforces

info:
prefix: '&4[Moderator]&8'
build: true
suffix: ''
Admin:
default: false
permissions:
- '*'
- bukkit.command.reload
- bukkit.command.stop
- deadbolt.*
- bukkit.command.say
- worldedit.*
- announcer.add
- announcer.broadcast
- announcer.delete
- announcer.moderate
- announcer.admin

inheritance:
- noob
- specialforces
- moderator
- creator
info:
prefix: '&5[Administrator]&8'
build: true
suffix: ''
Owner:
default: false
permissions: []
inheritance:
- admin
- noob
- specialforces
- moderator
- creator
info:
prefix: '&1[Owner]&8'
build: true
suffix: ''

EDIT by Moderator: merged posts, please use the edit button instead of double posting.

 

Hey jbrocks

I'm not sure why no one has replied to this yet but I'll give it a crack.

Could you copy your code here again but use the code format option at the top if the edit box.

Alternatively, you can just upload the config for me. Which might be better.
The reason I ask for this is simple copying the code into the post mixes it up and doesn't help at all.