"An Interal error occurred" Essentials Plugin

[DanHutton9400]

Tried to install Essentials 2.1.1 onto my 3.1.2 Tekkit Classic server and when ever I try and use a command it just says "an internal error.. ect"

Here is my Server.LOG

2013-06-30 03:19:42 [sEVERE] null

org.bukkit.command.CommandException: Unhandled exception executing command 'help' in plugin Essentials v2.11.1

at org.bukkit.command.PluginCommand.execute(PluginCommand.java:42)

at org.bukkit.command.SimpleCommandMap.dispatch(SimpleCommandMap.java:166)

at forge.bukkit.ForgeCommandMap.dispatch(ForgeCommandMap.java:55)

at org.bukkit.craftbukkit.CraftServer.dispatchCommand(CraftServer.java:497)

at net.minecraft.server.NetServerHandler.handleCommand(NetServerHandler.java:843)

at net.minecraft.server.NetServerHandler.chat(NetServerHandler.java:799)

at net.minecraft.server.NetServerHandler.a(NetServerHandler.java:781)

at net.minecraft.server.Packet3Chat.handle(Packet3Chat.java:34)

at net.minecraft.server.NetworkManager.b(NetworkManager.java:234)

at net.minecraft.server.NetServerHandler.a(NetServerHandler.java:119)

at net.minecraft.server.NetworkListenThread.a(NetworkListenThread.java:83)

at net.minecraft.server.MinecraftServer.w(MinecraftServer.java:579)

at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:467)

at net.minecraft.server.ThreadServerApplication.run(SourceFile:492)

Caused by: java.lang.NullPointerException

at com.earth2me.essentials.Essentials.onCommandEssentials(Essentials.java:339)

at com.earth2me.essentials.Essentials.onCommand(Essentials.java:330)

at org.bukkit.command.PluginCommand.execute(PluginCommand.java:40)

... 13 more

the only command nearest to /help that works is /? and that's it.

And here is a bit from my server start up

2013-06-30 03:16:03 [iNFO] 1.2.5-R4.1-MCPC-SNAPSHOT

2013-06-30 03:16:03 [sEVERE] Error occurred while enabling Essentials v2.11.1 (Is it up to date?)

java.lang.NoSuchMethodError: org.bukkit.scheduler.BukkitScheduler.runTaskAsynchronously(Lorg/bukkit/plugin/Plugin;Ljava/lang/Runnable;)Lorg/bukkit/scheduler/BukkitTask;

at com.earth2me.essentials.Essentials.runTaskAsynchronously(Essentials.java:676)

at com.earth2me.essentials.UserMap.loadAllUsersAsync(UserMap.java:31)

at com.earth2me.essentials.UserMap.<init>(UserMap.java:26)

at com.earth2me.essentials.Essentials.onEnable(Essentials.java:178)

at org.bukkit.plugin.java.JavaPlugin.setEnabled(JavaPlugin.java:215)

at org.bukkit.plugin.java.JavaPluginLoader.enablePlugin(JavaPluginLoader.java:337)

at org.bukkit.plugin.SimplePluginManager.enablePlugin(SimplePluginManager.java:386)

at org.bukkit.craftbukkit.CraftServer.loadPlugin(CraftServer.java:264)

at org.bukkit.craftbukkit.CraftServer.enablePlugins(CraftServer.java:246)

at net.minecraft.server.MinecraftServer.t(MinecraftServer.java:387)

at net.minecraft.server.MinecraftServer.a(MinecraftServer.java:374)

at net.minecraft.server.MinecraftServer.init(MinecraftServer.java:208)

at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:438)

at net.minecraft.server.ThreadServerApplication.run(SourceFile:492)

2013-06-30 03:16:03 [iNFO] [EssentialsProtect] Enabling EssentialsProtect v2.11.1

2013-06-30 03:16:03 [sEVERE] Plugin EssentialsProtect is attempting to register event org/bukkit/event/hanging/HangingBreakByEntityEvent, which does not exist. Ignoring events registered in class com.earth2me.essentials.protect.EssentialsProtectEntityListener

2013-06-30 03:16:03 [iNFO] [EssentialsSpawn] Enabling EssentialsSpawn v2.11.1

2013-06-30 03:16:03 [sEVERE] Error occurred while enabling EssentialsSpawn v2.11.1 (Is it up to date?)

java.lang.NoSuchMethodError: org.bukkit.scheduler.BukkitScheduler.runTaskAsynchronously(Lorg/bukkit/plugin/Plugin;Ljava/lang/Runnable;)Lorg/bukkit/scheduler/BukkitTask;

at com.earth2me.essentials.Essentials.runTaskAsynchronously(Essentials.java:676)

at com.earth2me.essentials.storage.AbstractDelayedYamlFileReader.<init>(AbstractDelayedYamlFileReader.java:23)

at com.earth2me.essentials.storage.AsyncStorageObjectHolder$StorageObjectDataReader.<init>(AsyncStorageObjectHolder.java:117)

at com.earth2me.essentials.storage.AsyncStorageObjectHolder.reloadConfig(AsyncStorageObjectHolder.java:74)

at com.earth2me.essentials.spawn.SpawnStorage.<init>(SpawnStorage.java:20)

at com.earth2me.essentials.spawn.EssentialsSpawn.onEnable(EssentialsSpawn.java:41)

at org.bukkit.plugin.java.JavaPlugin.setEnabled(JavaPlugin.java:215)

at org.bukkit.plugin.java.JavaPluginLoader.enablePlugin(JavaPluginLoader.java:337)

at org.bukkit.plugin.SimplePluginManager.enablePlugin(SimplePluginManager.java:386)

at org.bukkit.craftbukkit.CraftServer.loadPlugin(CraftServer.java:264)

at org.bukkit.craftbukkit.CraftServer.enablePlugins(CraftServer.java:246)

at net.minecraft.server.MinecraftServer.t(MinecraftServer.java:387)

at net.minecraft.server.MinecraftServer.a(MinecraftServer.java:374)

at net.minecraft.server.MinecraftServer.init(MinecraftServer.java:208)

at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:438)

at net.minecraft.server.ThreadServerApplication.run(SourceFile:492)

2013-06-30 03:16:03 [iNFO] [EssentialsAntiBuild] Enabling EssentialsAntiBuild v2.11.1

2013-06-30 03:16:03 [sEVERE] §4Unknown item 10 in protect.alert.on-placement list.

2013-06-30 03:16:03 [sEVERE] §4Unknown item 11 in protect.alert.on-placement list.

2013-06-30 03:16:03 [sEVERE] §4Unknown item 46 in protect.alert.on-placement list.

2013-06-30 03:16:03 [sEVERE] §4Unknown item 327 in protect.alert.on-placement list.

2013-06-30 03:16:03 [sEVERE] §4Unknown item 327 in protect.alert.on-use list.

2013-06-30 03:16:03 [sEVERE] §4Unknown item 10 in protect.blacklist.placement list.

2013-06-30 03:16:03 [sEVERE] §4Unknown item 11 in protect.blacklist.placement list.

2013-06-30 03:16:03 [sEVERE] §4Unknown item 46 in protect.blacklist.placement list.

2013-06-30 03:16:03 [sEVERE] §4Unknown item 327 in protect.blacklist.placement list.

2013-06-30 03:16:03 [sEVERE] §4Unknown item 327 in protect.blacklist.usage list.

2013-06-30 03:16:03 [sEVERE] Plugin EssentialsAntiBuild is attempting to register event org/bukkit/event/hanging/HangingBreakByEntityEvent, which does not exist. Ignoring events registered in class com.earth2me.essentials.antibuild.EssentialsAntiBuildListener

2013-06-30 03:16:03 [iNFO] [EssentialsChat] Enabling EssentialsChat v2.11.1

2013-06-30 03:16:03 [sEVERE] Plugin EssentialsChat is attempting to register event org/bukkit/event/player/AsyncPlayerChatEvent, which does not exist. Ignoring events registered in class com.earth2me.essentials.chat.EssentialsChatPlayerListenerLowest

2013-06-30 03:16:03 [sEVERE] Plugin EssentialsChat is attempting to register event org/bukkit/event/player/AsyncPlayerChatEvent, which does not exist. Ignoring events registered in class com.earth2me.essentials.chat.EssentialsChatPlayerListenerNormal

2013-06-30 03:16:03 [sEVERE] Plugin EssentialsChat is attempting to register event org/bukkit/event/player/AsyncPlayerChatEvent, which does not exist. Ignoring events registered in class com.earth2me.essentials.chat.EssentialsChatPlayerListenerHighest

2013-06-30 03:16:03 [iNFO] Server permissions file permissions.yml is empty, ignoring it

2013-06-30 03:16:03 [iNFO] Done (1.337s)! For help, type "help" or "?"

2013-06-30 03:16:03 [FINER] Railcraft IC2 Module {0}: IC2

Please help.

Thanks