[06:11:43] [Server thread/INFO]: Stormysky issued server command: /back
[06:11:43] [Server thread/ERROR]: Could not pass event PlayerTeleportEvent to WorldeditRegions v1.0.1
org.bukkit.event.EventException
	at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:303) ~[spigot.jar:git-Spigot-"606148f"]
	at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62) ~[spigot.jar:git-Spigot-"606148f"]
	at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:509) [spigot.jar:git-Spigot-"606148f"]
	at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:494) [spigot.jar:git-Spigot-"606148f"]
	at org.bukkit.craftbukkit.v1_8_R1.entity.CraftPlayer.teleport(CraftPlayer.java:446) [spigot.jar:git-Spigot-"606148f"]
	at com.earth2me.essentials.Teleport.now(Teleport.java:126) [Essentials.jar:?]
	at com.earth2me.essentials.Teleport.teleport(Teleport.java:194) [Essentials.jar:?]
	at com.earth2me.essentials.Teleport.back(Teleport.java:272) [Essentials.jar:?]
	at com.earth2me.essentials.commands.Commandback.run(Commandback.java:30) [Essentials.jar:?]
	at com.earth2me.essentials.commands.EssentialsCommand.run(EssentialsCommand.java:180) [Essentials.jar:?]
	at com.earth2me.essentials.Essentials.onCommandEssentials(Essentials.java:527) [Essentials.jar:?]
	at com.earth2me.essentials.Essentials.onCommand(Essentials.java:402) [Essentials.jar:?]
	at org.bukkit.command.PluginCommand.execute(PluginCommand.java:44) [spigot.jar:git-Spigot-"606148f"]
	at org.bukkit.command.SimpleCommandMap.dispatch(SimpleCommandMap.java:181) [spigot.jar:git-Spigot-"606148f"]
	at org.bukkit.craftbukkit.v1_8_R1.CraftServer.dispatchCommand(CraftServer.java:643) [spigot.jar:git-Spigot-"606148f"]
	at net.minecraft.server.v1_8_R1.PlayerConnection.handleCommand(PlayerConnection.java:1105) [spigot.jar:git-Spigot-"606148f"]
	at net.minecraft.server.v1_8_R1.PlayerConnection.a(PlayerConnection.java:940) [spigot.jar:git-Spigot-"606148f"]
	at net.minecraft.server.v1_8_R1.PacketPlayInChat.a(PacketPlayInChat.java:26) [spigot.jar:git-Spigot-"606148f"]
	at net.minecraft.server.v1_8_R1.PacketPlayInChat.a(PacketPlayInChat.java:53) [spigot.jar:git-Spigot-"606148f"]
	at net.minecraft.server.v1_8_R1.PacketHandleTask.run(SourceFile:13) [spigot.jar:git-Spigot-"606148f"]
	at java.util.concurrent.Executors$RunnableAdapter.call(Unknown Source) [?:1.7.0_67]
	at java.util.concurrent.FutureTask.run(Unknown Source) [?:1.7.0_67]
	at net.minecraft.server.v1_8_R1.MinecraftServer.z(MinecraftServer.java:684) [spigot.jar:git-Spigot-"606148f"]
	at net.minecraft.server.v1_8_R1.DedicatedServer.z(DedicatedServer.java:316) [spigot.jar:git-Spigot-"606148f"]
	at net.minecraft.server.v1_8_R1.MinecraftServer.y(MinecraftServer.java:625) [spigot.jar:git-Spigot-"606148f"]
	at net.minecraft.server.v1_8_R1.MinecraftServer.run(MinecraftServer.java:528) [spigot.jar:git-Spigot-"606148f"]
	at java.lang.Thread.run(Unknown Source) [?:1.7.0_67]
Caused by: java.lang.IncompatibleClassChangeError: Found interface com.sk89q.worldguard.protection.ApplicableRegionSet, but class was expected
	at com.empcraft.wrg.regions.WorldguardFeature.isowner(WorldguardFeature.java:58) ~[?:?]
	at com.empcraft.wrg.regions.WorldguardFeature.getcuboid(WorldguardFeature.java:124) ~[?:?]
	at com.empcraft.wrg.util.RegionHandler.setMask(RegionHandler.java:93) ~[?:?]
	at com.empcraft.wrg.listener.PlayerListener.onPlayerTeleport(PlayerListener.java:128) ~[?:?]
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:1.7.0_67]
	at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source) ~[?:1.7.0_67]
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) ~[?:1.7.0_67]
	at java.lang.reflect.Method.invoke(Unknown Source) ~[?:1.7.0_67]
	at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:299) ~[spigot.jar:git-Spigot-"606148f"]
	... 26 more