WE Error

03:03:29 [WARNING] [WorldEdit] "WorldEdit v1183-e20e2f2" has registered a listen
er for org.bukkit.event.player.PlayerChatEvent on method "public void com.sk89q.
worldedit.bukkit.WorldEditListener.onPlayerChat(org.bukkit.event.player.PlayerCh
atEvent)", but the event is Deprecated. Server performance will be affected; ple
ase notify the authors [].
org.bukkit.plugin.AuthorNagException
        at org.bukkit.plugin.java.JavaPluginLoader.createRegisteredListeners(Jav
aPluginLoader.java:302)
        at org.bukkit.plugin.SimplePluginManager.registerEvents(SimplePluginMana
ger.java:507)
        at com.sk89q.worldedit.bukkit.WorldEditPlugin.onEnable(WorldEditPlugin.j
ava:113)
        at org.bukkit.plugin.java.JavaPlugin.setEnabled(JavaPlugin.java:217)
        at org.bukkit.plugin.java.JavaPluginLoader.enablePlugin(JavaPluginLoader
.java:357)
        at org.bukkit.plugin.SimplePluginManager.enablePlugin(SimplePluginManage
r.java:381)
        at org.bukkit.craftbukkit.CraftServer.loadPlugin(CraftServer.java:263)
        at org.bukkit.craftbukkit.CraftServer.enablePlugins(CraftServer.java:245
)
        at net.minecraft.server.MinecraftServer.i(MinecraftServer.java:296)
        at net.minecraft.server.MinecraftServer.d(MinecraftServer.java:275)
        at net.minecraft.server.MinecraftServer.a(MinecraftServer.java:225)
        at net.minecraft.server.DedicatedServer.init(DedicatedServer.java:140)
        at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:380)
        at net.minecraft.server.ThreadServerApplication.run(SourceFile:539)