CraftBukkit plugin "NBTEdit" crashed

16:53:14 [SEVERE] null
org.bukkit.command.CommandException: Unhandled exception executing command 'nbt'
 in plugin NBTEdit v0.0.9
        at org.bukkit.command.PluginCommand.execute(PluginCommand.java:46)
        at org.bukkit.command.SimpleCommandMap.dispatch(SimpleCommandMap.java:18
8)
        at org.bukkit.craftbukkit.v1_5_R2.CraftServer.dispatchCommand(CraftServe
r.java:523)
        at net.minecraft.server.v1_5_R2.PlayerConnection.handleCommand(PlayerCon
nection.java:966)
        at net.minecraft.server.v1_5_R2.PlayerConnection.chat(PlayerConnection.j
ava:884)
        at net.minecraft.server.v1_5_R2.PlayerConnection.a(PlayerConnection.java
:841)
        at net.minecraft.server.v1_5_R2.Packet3Chat.handle(Packet3Chat.java:44)
        at net.minecraft.server.v1_5_R2.NetworkManager.b(NetworkManager.java:292
)
        at net.minecraft.server.v1_5_R2.PlayerConnection.d(PlayerConnection.java
:110)
        at net.minecraft.server.v1_5_R2.ServerConnection.b(SourceFile:35)
        at net.minecraft.server.v1_5_R2.DedicatedServerConnection.b(SourceFile:3
0)
        at net.minecraft.server.v1_5_R2.MinecraftServer.r(MinecraftServer.java:5
78)
        at net.minecraft.server.v1_5_R2.DedicatedServer.r(DedicatedServer.java:2
25)
        at net.minecraft.server.v1_5_R2.MinecraftServer.q(MinecraftServer.java:4
74)
        at net.minecraft.server.v1_5_R2.MinecraftServer.run(MinecraftServer.java
:407)
        at net.minecraft.server.v1_5_R2.ThreadServerApplication.run(SourceFile:5
73)
Caused by: java.lang.ArrayIndexOutOfBoundsException: 1
        at com.dethemium.sandbox.NBTCommandHandler.onCommand(NBTCommandHandler.j
ava:67)
        at org.bukkit.command.PluginCommand.execute(PluginCommand.java:44)
        ... 15 more