Essentials Chat reducing server performance with a error

So when I updated to 1.3.1, I took the latest Essentials Chat plugins downloaded from bukkit then I put it in my plugins folder like usual but each time everyone chats this error shows up in the console.

2012-08-11 19:01:17 [SEVERE] Could not pass event AsyncPlayerChatEvent to EssentialsChat
org.bukkit.event.EventException
at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:332)
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.NetServerHandler.chat(NetServerHandler.java:830)
at net.minecraft.server.NetServerHandler.a(NetServerHandler.java:807)
at net.minecraft.server.Packet3Chat.handle(Packet3Chat.java:44)
at net.minecraft.server.NetworkManager.i(NetworkManager.java:216)
at net.minecraft.server.NetworkManager.c(NetworkManager.java:331)
at net.minecraft.server.NetworkReaderThread.run(SourceFile:93)
Caused by: java.lang.AbstractMethodError: com.massivecraft.factions.integration.EssentialsOldVersionFeatures$1.shouldHandleThisChat(Lorg/bukkit/event/player/AsyncPlayerChatEventZ
at com.earth2me.essentials.chat.EssentialsChatPlayer.isAborted(EssentialsChatPlayer.java:51)
at com.earth2me.essentials.chat.EssentialsChatPlayerListenerHighest.onPlayerChat(EssentialsChatPlayerListenerHighest.java:26)
at sun.reflect.GeneratedMethodAccessor231.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
at java.lang.reflect.Method.invoke(Unknown Source)
at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
... 9 more

IS there a fix or is it normal cause everyone is lagging.

 

Your best bet would be to contact the Essentials folks directly
http://dev.bukkit.org/server-mods/essentials/pages/main/how-to-get-help/

 

I think that it's because that there is only the 1.2.5 essentials plugins and that I used them for my 1.3.1 server.
I will try to contact them

 

get essentials 2.9.3, and update factions.