ServerAI sending players home stack trace

[SEVERE] Could not pass event AsyncPlayerChatEvent to ServerAI v3.4.6
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.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
	at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:459)
	at net.minecraft.server.v1_4_6.PlayerConnection.chat(PlayerConnection.java:902)
	at net.minecraft.server.v1_4_6.PlayerConnection.a(PlayerConnection.java:852)
	at net.minecraft.server.v1_4_6.Packet3Chat.handle(Packet3Chat.java:44)
	at net.minecraft.server.v1_4_6.NetworkManager.i(NetworkManager.java:208)
	at net.minecraft.server.v1_4_6.NetworkManager.c(NetworkManager.java:344)
	at net.minecraft.server.v1_4_6.NetworkReaderThread.run(SourceFile:93)
Caused by: java.lang.NullPointerException
	at org.bukkit.craftbukkit.v1_4_6.entity.CraftPlayer.teleport(CraftPlayer.java:382)
	at org.bukkit.craftbukkit.v1_4_6.entity.CraftEntity.teleport(CraftEntity.java:189)
	at me.jamiemac262.ServerAIReWrite.ServerChatListener.onPlayerChat(ServerChatListener.java:166)
	at sun.reflect.GeneratedMethodAccessor1060.invoke(Unknown Source)
	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:425)
	... 9 more