FTB Unleashed 1.1.4 server crash

[Gongorrian]

Hi everyone...

My multiplay FTB Unleashed server keeps crashing every 30 min.
Dont really have mutch to say but i have a crash repport to show you guys, and i was really hoping for some help on how to fix it

Paste bin link for full crash log: http://pastebin.com/raw.php?i=9M0E2b4M

---- Minecraft Crash Report ----
// This doesn't make any sense!

Time: 9/3/13 12:47 PM
Description: Exception in server tick loop

java.lang.NullPointerException
at codechicken.core.world.WorldExtensionManager.preTick(WorldExtensionManager.java:242)
at codechicken.core.world.WorldExtensionManager.access$4(WorldExtensionManager.java:240)
at codechicken.core.world.WorldExtensionManager$WorldExtensionServerTickHandler.tickStart(WorldExtensio nManager.java:157)
at cpw.mods.fml.common.SingleIntervalHandler.tickStart(SingleIntervalHandler.java:28)
at cpw.mods.fml.common.FMLCommonHandler.tickStart(FMLCommonHandler.java:122)
at cpw.mods.fml.common.FMLCommonHandler.onPreWorldTick(FMLCommonHandler.java:295)
at net.minecraft.server.MinecraftServer.func_71190_q(MinecraftServer.java:638)
at net.minecraft.server.dedicated.DedicatedServer.func_71190_q(DedicatedServer.java:275)
at net.minecraft.server.MinecraftServer.func_71217_p(MinecraftServer.java:573)
at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:470)
at net.minecraft.server.ThreadMinecraftServer.run(SourceFile:573)