2012-04-02 20:17:22 [SEVERE] Could not pass event PlayerChatEvent to EssentialsChat
org.bukkit.event.EventException
	at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:303)
	at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
	at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:459)
	at net.minecraft.server.NetServerHandler.chat(NetServerHandler.java:786)
	at net.minecraft.server.NetServerHandler.a(NetServerHandler.java:764)
	at net.minecraft.server.Packet3Chat.handle(Packet3Chat.java:33)
	at net.minecraft.server.NetworkManager.b(NetworkManager.java:229)
	at net.minecraft.server.NetServerHandler.a(NetServerHandler.java:113)
	at net.minecraft.server.NetworkListenThread.a(NetworkListenThread.java:78)
	at net.minecraft.server.MinecraftServer.w(MinecraftServer.java:554)
	at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:452)
	at net.minecraft.server.ThreadServerApplication.run(SourceFile:490)
Caused by: java.lang.NoSuchMethodError: com.earth2me.essentials.Util.formatMessage(Lcom/earth2me/essentials/IUser;Ljava/lang/String;Ljava/lang/String;)Ljava/lang/String;
	at com.earth2me.essentials.chat.EssentialsChatPlayerListenerLowest.onPlayerChat(EssentialsChatPlayerListenerLowest.java:35)
	at sun.reflect.GeneratedMethodAccessor327.invoke(Unknown Source)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.lang.reflect.Method.invoke(Method.java:616)
	at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:301)
	... 11 more