RustyCore - Error: AsyncPlayerChatEvent

[10:56:37 ERROR]: Could not pass event AsyncPlayerChatEvent to RustyCore v1.0
org.bukkit.event.EventException
	at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:310) ~[spigot-1.8.8.jar:git-Spigot-6c9b0a1-de5c261]
	at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62) ~[spigot-1.8.8.jar:git-Spigot-6c9b0a1-de5c261]
	at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:502) [spigot-1.8.8.jar:git-Spigot-6c9b0a1-de5c261]
	at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:484) [spigot-1.8.8.jar:git-Spigot-6c9b0a1-de5c261]
	at net.minecraft.server.v1_8_R3.PlayerConnection.chat(PlayerConnection.java:1084) [spigot-1.8.8.jar:git-Spigot-6c9b0a1-de5c261]
	at net.minecraft.server.v1_8_R3.PlayerConnection.a(PlayerConnection.java:1022) [spigot-1.8.8.jar:git-Spigot-6c9b0a1-de5c261]
	at net.minecraft.server.v1_8_R3.PacketPlayInChat$1.run(PacketPlayInChat.java:39) [spigot-1.8.8.jar:git-Spigot-6c9b0a1-de5c261]
	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) [?:1.8.0_45]
	at java.util.concurrent.FutureTask.run(FutureTask.java:266) [?:1.8.0_45]
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142) [?:1.8.0_45]
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617) [?:1.8.0_45]
	at java.lang.Thread.run(Thread.java:745) [?:1.8.0_45]
Caused by: java.lang.NullPointerException
	at me.rusty.rustycore.hanlders.ChatHandler.onChat(ChatHandler.java:16) ~[?:?]
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:1.8.0_45]
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[?:1.8.0_45]
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[?:1.8.0_45]
	at java.lang.reflect.Method.invoke(Method.java:497) ~[?:1.8.0_45]
	at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:306) ~[spigot-1.8.8.jar:git-Spigot-6c9b0a1-de5c261]
	... 11 more
[10:56:37 INFO]: <RustyDesigns> Hi
[10:56:40 INFO]: RustyDesigns issued server command: /gamemode c
[10:56:40 INFO]: [RustyDesigns: Set own game mode to Creative Mode]