[SEVERE] Could not pass event PlayerCommandPreprocessEvent to GriefPrevention v7.8
org.bukkit.event.EventException
	at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:363)
	at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
	at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:479)
	at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:464)
	at net.minecraft.network.NetServerHandler.func_72566_d(NetServerHandler.java:1361)
	at net.minecraft.network.NetServerHandler.chat(NetServerHandler.java:1240)
	at net.minecraft.network.NetServerHandler.func_72481_a(NetServerHandler.java:1166)
	at net.minecraft.network.packet.Packet3Chat.func_73279_a(Packet3Chat.java:60)
	at net.minecraft.network.TcpConnection.func_74428_b(TcpConnection.java:442)
	at net.minecraft.network.NetServerHandler.func_72570_d(NetServerHandler.java:213)
	at net.minecraft.network.NetworkListenThread.func_71747_b(NetworkListenThread.java:53)
	at net.minecraft.server.dedicated.DedicatedServerListenThread.func_71747_b(SourceFile:30)
	at net.minecraft.server.MinecraftServer.func_71190_q(MinecraftServer.java:859)
	at net.minecraft.server.dedicated.DedicatedServer.func_71190_q(DedicatedServer.java:320)
	at net.minecraft.server.MinecraftServer.func_71217_p(MinecraftServer.java:728)
	at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:612)
	at net.minecraft.server.ThreadMinecraftServer.run(SourceFile:573)
Caused by: java.lang.NullPointerException
	at me.ryanhamshire.GriefPrevention.PlayerEventHandler.onPlayerCommandPreprocess(PlayerEventHandler.java:403)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.lang.reflect.Method.invoke(Method.java:601)
	at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:361)
	... 16 more