Bukkit

Plugin version: ParkourRunner-V0.2.1

Hey, I do not know English, in writing through Google translate, I need advice, I guess I also came across an error, the player does not command / join name-pr.spectate arena, apparently not entitled to it, but I did not find it right to tell them they joined, and config I have set SpectateEnabled: true

Please help and Thank you!

2013-09-19 23:05:51 [INFO] Dubnik issued server command: /pr.spectate
2013-09-19 23:05:51 [SEVERE] null
org.bukkit.command.CommandException: Unhandled exception executing command 'pr.spectate' in plugin ParkourRunner v0.2.1
    at org.bukkit.command.PluginCommand.execute(PluginCommand.java:46)
    at org.bukkit.command.SimpleCommandMap.dispatch(SimpleCommandMap.java:192)
    at org.bukkit.craftbukkit.v1_6_R2.CraftServer.dispatchCommand(CraftServer.java:523)
    at net.minecraft.server.v1_6_R2.PlayerConnection.handleCommand(PlayerConnection.java:954)
    at net.minecraft.server.v1_6_R2.PlayerConnection.chat(PlayerConnection.java:872)
    at net.minecraft.server.v1_6_R2.PlayerConnection.a(PlayerConnection.java:829)
    at net.minecraft.server.v1_6_R2.Packet3Chat.handle(SourceFile:49)
    at net.minecraft.server.v1_6_R2.NetworkManager.b(NetworkManager.java:296)
    at net.minecraft.server.v1_6_R2.PlayerConnection.e(PlayerConnection.java:116)
    at net.minecraft.server.v1_6_R2.ServerConnection.b(SourceFile:37)
    at net.minecraft.server.v1_6_R2.DedicatedServerConnection.b(SourceFile:30)
    at net.minecraft.server.v1_6_R2.MinecraftServer.t(MinecraftServer.java:590)
    at net.minecraft.server.v1_6_R2.DedicatedServer.t(DedicatedServer.java:226)
    at net.minecraft.server.v1_6_R2.MinecraftServer.s(MinecraftServer.java:486)
    at net.minecraft.server.v1_6_R2.MinecraftServer.run(MinecraftServer.java:419)
    at net.minecraft.server.v1_6_R2.ThreadServerApplication.run(SourceFile:582)
Caused by: java.lang.ArrayIndexOutOfBoundsException: 0
    at me.InternetBowser.ParkourRunner.SpectateCommand.onCommand(SpectateCommand.java:34)
    at org.bukkit.command.PluginCommand.execute(PluginCommand.java:44)
    ... 15 more