BattleArena

[17:06:02] [Server thread/ERROR]: Could not pass event ArenaPlayerLeaveEvent to BattleArena v3.9.5.4
org.bukkit.event.EventException
        at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:427) ~[spigot.jar:git-Spigot-1228]
        at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62) ~[spigot.jar:git-Spigot-1228]
        at org.bukkit.plugin.TimedRegisteredListener.callEvent(TimedRegisteredListener.java:30) ~[spigot.jar:git-Spigot-1228]
        at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:482) [spigot.jar:git-Spigot-1228]
        at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:467) [spigot.jar:git-Spigot-1228]
        at mc.alk.arena.events.BAEvent.callEvent(BAEvent.java:14) [BattleArena.jar:?]
        at mc.alk.arena.executors.BAExecutor.leave(BAExecutor.java:420) [BattleArena.jar:?]
        at mc.alk.arena.executors.BAExecutor.leave(BAExecutor.java:411) [BattleArena.jar:?]
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:1.7.0_45]
        at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source) ~[?:1.7.0_45]
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) ~[?:1.7.0_45]
        at java.lang.reflect.Method.invoke(Unknown Source) ~[?:1.7.0_45]
        at mc.alk.arena.executors.BaseExecutor.onCommand(BaseExecutor.java:256) [BattleArena.jar:?]
        at org.bukkit.command.PluginCommand.execute(PluginCommand.java:44) [spigot.jar:git-Spigot-1228]
        at org.bukkit.command.SimpleCommandMap.dispatch(SimpleCommandMap.java:196) [spigot.jar:git-Spigot-1228]
        at org.bukkit.craftbukkit.v1_7_R1.CraftServer.dispatchCommand(CraftServer.java:546) [spigot.jar:git-Spigot-1228]
        at net.minecraft.server.v1_7_R1.PlayerConnection.handleCommand(PlayerConnection.java:960) [spigot.jar:git-Spigot-1228]
        at net.minecraft.server.v1_7_R1.PlayerConnection.a(PlayerConnection.java:815) [spigot.jar:git-Spigot-1228]
        at com.bergerkiller.bukkit.common.internal.network.CommonPacketHandler$CommonPlayerConnection.a(CommonPacketHandler.java:244) [BKCommonLib-1.57.jar:?]
        at net.minecraft.server.v1_7_R1.PacketPlayInChat.a(PacketPlayInChat.java:28) [spigot.jar:git-Spigot-1228]
        at net.minecraft.server.v1_7_R1.PacketPlayInChat.handle(PacketPlayInChat.java:65) [spigot.jar:git-Spigot-1228]
        at net.minecraft.server.v1_7_R1.NetworkManager.a(NetworkManager.java:147) [spigot.jar:git-Spigot-1228]
        at net.minecraft.server.v1_7_R1.ServerConnection.c(SourceFile:134) [spigot.jar:git-Spigot-1228]
        at net.minecraft.server.v1_7_R1.MinecraftServer.u(MinecraftServer.java:657) [spigot.jar:git-Spigot-1228]
        at net.minecraft.server.v1_7_R1.DedicatedServer.u(DedicatedServer.java:273) [spigot.jar:git-Spigot-1228]
        at net.minecraft.server.v1_7_R1.MinecraftServer.t(MinecraftServer.java:540) [spigot.jar:git-Spigot-1228]
        at net.minecraft.server.v1_7_R1.MinecraftServer.run(MinecraftServer.java:446) [spigot.jar:git-Spigot-1228]
        at net.minecraft.server.v1_7_R1.ThreadServerApplication.run(SourceFile:617) [spigot.jar:git-Spigot-1228]
Caused by: java.lang.IllegalStateException: Removing to a team that doesn't exist
        at mc.alk.arena.objects.scoreboard.base.ArenaBukkitScoreboard.removedFromTeam(ArenaBukkitScoreboard.java:123) ~[?:?]
        at mc.alk.arena.objects.scoreboard.base.ArenaBukkitScoreboard.setDead(ArenaBukkitScoreboard.java:134) ~[?:?]
        at mc.alk.arena.competition.match.Match.onArenaPlayerLeaveEventGlobal(Match.java:1037) ~[?:?]
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:1.7.0_45]
        at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source) ~[?:1.7.0_45]
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) ~[?:1.7.0_45]
        at java.lang.reflect.Method.invoke(Unknown Source) ~[?:1.7.0_45]
        at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:425) ~[spigot.jar:git-Spigot-1228]
        ... 27 more