Помогите Выдает ошибку!!!

2013-10-30 17:53:49 [WARNING] [Essentials] Task #44 for Essentials v2.11.1 generated an exception
java.lang.NoSuchMethodError: com.earth2me.essentials.Kit.getItems(Lcom/earth2me/essentials/User;Ljava/util/MapLjava/util/List;
at com.earth2me.essentials.spawn.EssentialsSpawnPlayerListener$2.run(EssentialsSpawnPlayerListener.java:126)
at org.bukkit.craftbukkit.v1_5_R3.scheduler.CraftTask.run(CraftTask.java:58)
at org.bukkit.craftbukkit.v1_5_R3.scheduler.CraftScheduler.mainThreadHeartbeat(CraftScheduler.java:344)
at net.minecraft.server.MinecraftServer.func_71190_q(MinecraftServer.java:777)
at net.minecraft.server.dedicated.DedicatedServer.func_71190_q(DedicatedServer.java:320)
at net.minecraft.server.MinecraftServer.func_71217_p(MinecraftServer.java:732)
at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:614)
at net.minecraft.server.ThreadMinecraftServer.run(SourceFile:573)
Почему выдает эту ошибку?