ImgMap plugin error

[19:46:17 INFO]: Shores2510 issued server command: /getmap
[19:46:17 ERROR]: null
org.bukkit.command.CommandException: Unhandled exception executing command 'getmap' in pl
ugin ImgMap v1a
        at org.bukkit.command.PluginCommand.execute(PluginCommand.java:46) ~[craftbukkit.
jar:git-Bukkit-1.7.2-R0.2-b2974jnks]
        at org.bukkit.command.SimpleCommandMap.dispatch(SimpleCommandMap.java:196) ~[craf
tbukkit.jar:git-Bukkit-1.7.2-R0.2-b2974jnks]
        at org.bukkit.craftbukkit.v1_7_R1.CraftServer.dispatchCommand(CraftServer.java:54
2) ~[craftbukkit.jar:git-Bukkit-1.7.2-R0.2-b2974jnks]
        at net.minecraft.server.v1_7_R1.PlayerConnection.handleCommand(PlayerConnection.j
ava:932) [craftbukkit.jar:git-Bukkit-1.7.2-R0.2-b2974jnks]
        at net.minecraft.server.v1_7_R1.PlayerConnection.a(PlayerConnection.java:814) [cr
aftbukkit.jar:git-Bukkit-1.7.2-R0.2-b2974jnks]
        at com.bergerkiller.bukkit.common.internal.network.CommonPacketHandler$CommonPlay
erConnection.a(CommonPacketHandler.java:244) [BKCommonLib-1.57-SNAPSHOT.jar:?]
        at net.minecraft.server.v1_7_R1.PacketPlayInChat.a(PacketPlayInChat.java:28) [cra
ftbukkit.jar:git-Bukkit-1.7.2-R0.2-b2974jnks]
        at net.minecraft.server.v1_7_R1.PacketPlayInChat.handle(PacketPlayInChat.java:47)
 [craftbukkit.jar:git-Bukkit-1.7.2-R0.2-b2974jnks]
        at net.minecraft.server.v1_7_R1.NetworkManager.a(NetworkManager.java:146) [craftb
ukkit.jar:git-Bukkit-1.7.2-R0.2-b2974jnks]
        at net.minecraft.server.v1_7_R1.ServerConnection.c(SourceFile:134) [craftbukkit.j
ar:git-Bukkit-1.7.2-R0.2-b2974jnks]
        at net.minecraft.server.v1_7_R1.MinecraftServer.u(MinecraftServer.java:655) [craf
tbukkit.jar:git-Bukkit-1.7.2-R0.2-b2974jnks]
        at net.minecraft.server.v1_7_R1.DedicatedServer.u(DedicatedServer.java:250) [craf
tbukkit.jar:git-Bukkit-1.7.2-R0.2-b2974jnks]
        at net.minecraft.server.v1_7_R1.MinecraftServer.t(MinecraftServer.java:545) [craf
tbukkit.jar:git-Bukkit-1.7.2-R0.2-b2974jnks]
        at net.minecraft.server.v1_7_R1.MinecraftServer.run(MinecraftServer.java:457) [cr
aftbukkit.jar:git-Bukkit-1.7.2-R0.2-b2974jnks]
        at net.minecraft.server.v1_7_R1.ThreadServerApplication.run(SourceFile:617) [craf
tbukkit.jar:git-Bukkit-1.7.2-R0.2-b2974jnks]
Caused by: java.lang.ArrayIndexOutOfBoundsException: 0
        at net.yukkuricraft.tenko.ImgMap.onCommand(ImgMap.java:156) ~[?:?]
        at org.bukkit.command.PluginCommand.execute(PluginCommand.java:44) ~[craftbukkit.
jar:git-Bukkit-1.7.2-R0.2-b2974jnks]
        ... 14 more
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