After upgrading to one of the new craftbukkit versions, 1211, and using essentials 2.6.1, when I ban a player all it says is Code: Error: net.minecraft.server.ServerConfigurationManager.a(Ljava/lang/String;)V which seems to be an essentials message. Can anyone test it on their server? turns out it didnt fully install the new essentials EDIT by Moderator: merged posts, please use the edit button instead of double posting.