org.bukkit.command.CommandException: Unhandled exception executing command 'mcha
t' in plugin mChat v1.8.3_5
        at org.bukkit.command.PluginCommand.execute(PluginCommand.java:42)
        at org.bukkit.command.SimpleCommandMap.dispatch(SimpleCommandMap.java:16
3)
        at org.bukkit.craftbukkit.CraftServer.dispatchCommand(CraftServer.java:3
58)
        at net.minecraft.server.NetServerHandler.handleCommand(NetServerHandler.
java:757)
        at net.minecraft.server.NetServerHandler.chat(NetServerHandler.java:722)

        at net.minecraft.server.NetServerHandler.a(NetServerHandler.java:715)
        at net.minecraft.server.Packet3Chat.a(Packet3Chat.java:33)
        at net.minecraft.server.NetworkManager.b(NetworkManager.java:226)
        at net.minecraft.server.NetServerHandler.a(NetServerHandler.java:92)
        at net.minecraft.server.NetworkListenThread.a(SourceFile:108)
        at net.minecraft.server.MinecraftServer.h(MinecraftServer.java:471)
        at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:374)
        at net.minecraft.server.ThreadServerApplication.run(SourceFile:417)
Caused by: java.lang.ArrayIndexOutOfBoundsException: 0
        at net.D3GN.MiracleM4n.mChat.MCommandSender.onCommand(MCommandSender.jav
a:22)
        at org.bukkit.command.PluginCommand.execute(PluginCommand.java:40)
        ... 12 more