10:52:13 [SEVERE] Could not pass event PlayerCommandPreprocessEvent to ReMap v0.3
org.bukkit.event.EventException
        at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:427)
        at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
        at org.bukkit.plugin.TimedRegisteredListener.callEvent(TimedRegisteredListener.java:30)
        at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:478)
        at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:463)
        at net.minecraft.server.v1_5_R3.PlayerConnection.handleCommand(PlayerConnection.java:976)
        at net.minecraft.server.v1_5_R3.PlayerConnection.chat(PlayerConnection.java:901)
        at net.minecraft.server.v1_5_R3.PlayerConnection.a(PlayerConnection.java:846)
        at net.minecraft.server.v1_5_R3.Packet3Chat.handle(Packet3Chat.java:44)
        at org.spigotmc.netty.NettyNetworkManager.b(NettyNetworkManager.java:218)
        at net.minecraft.server.v1_5_R3.PlayerConnection.d(PlayerConnection.java:115)
        at net.minecraft.server.v1_5_R3.ServerConnection.b(SourceFile:35)
        at org.spigotmc.MultiplexingServerConnection.b(MultiplexingServerConnection.java:72)
        at net.minecraft.server.v1_5_R3.MinecraftServer.r(MinecraftServer.java:583)
        at net.minecraft.server.v1_5_R3.DedicatedServer.r(DedicatedServer.java:227)
        at net.minecraft.server.v1_5_R3.MinecraftServer.q(MinecraftServer.java:472)
        at net.minecraft.server.v1_5_R3.MinecraftServer.run(MinecraftServer.java:404)
        at net.minecraft.server.v1_5_R3.ThreadServerApplication.run(SourceFile:573)
Caused by: java.lang.StringIndexOutOfBoundsException: String index out of range: 1
        at java.lang.String.substring(Unknown Source)
        at com.kiwhen.remap.CmdListener.onPlayerCommandPreProcess(CmdListener.java:43)
        at sun.reflect.GeneratedMethodAccessor322.invoke(Unknown Source)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
        at java.lang.reflect.Method.invoke(Unknown Source)
        at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:425)
        ... 17 more
10:52:13 [INFO] crysis992 issued server command: /