When l try to genetrate a world this thing happens and l have no idea what is causing it
Code:
2013-05-02 19:32:58 [SEVERE] [ForgeModLoader] Fatal errors were detected during the transition from LOADING to SERVER_ABOUT_TO_START. Loading cannot continue
2013-05-02 19:32:58 [SEVERE] [ForgeModLoader]
mcp{7.44} [Minecraft Coder Pack] (minecraft.jar) Unloaded->Available
FML{5.1.43.679} [Forge Mod Loader] (coremods) Unloaded->Available
Forge{7.7.2.679} [Minecraft Forge] (coremods) Unloaded->Available
CodeChickenCore{0.8.6.3} [CodeChicken Core] (coremods) Unloaded->Available
NotEnoughItems{1.5.2.10} [Not Enough Items] (coremods) Unloaded->Available
AppliedEnergistics{rv.10.i} [Applied Energistics] (appeng-rv10-i.zip) Unloaded->Errored
ArsMagica{5.50.010} [Ars Magica] (ArsMagica_5.50.010.zip) Unloaded->Errored
mod_BackTools{Not available} [mod_BackTools] (BackTools1.5.1v2.zip) Unloaded->Available
BuildCraft|Builders{3.5.0} [BC Builders] (buildcraft-A-3.5.0.jar) Unloaded->Errored
BuildCraft|Core{3.5.0} [BuildCraft] (buildcraft-A-3.5.0.jar) Unloaded->Errored
BuildCraft|Energy{3.5.0} [BC Energy] (buildcraft-A-3.5.0.jar) Unloaded->Errored
BuildCraft|Factory{3.5.0} [BC Factory] (buildcraft-A-3.5.0.jar) Unloaded->Errored
BuildCraft|Silicon{3.5.0} [BC Silicon] (buildcraft-A-3.5.0.jar) Unloaded->Errored
BuildCraft|Transport{3.5.0} [BC Transport] (buildcraft-A-3.5.0.jar) Unloaded->Errored
ChickenChunks{1.3.2.5} [ChickenChunks] (ChickenChunks 1.3.2.5.jar) Unloaded->Errored
CCTurtle{1.52} [ComputerCraft Turtles] (ComputerCraft1.52.zip) Unloaded->Errored
ComputerCraft{1.52} [ComputerCraft] (ComputerCraft1.52.zip) Unloaded->Errored
EE3{pre1g (build 4)} [Equivalent Exchange 3] (ee3-universal-pre1g.jar) Unloaded->Errored
EnderStorage{1.4.2.4} [EnderStorage] (EnderStorage 1.4.2.4.jar) Unloaded->Errored
factorization.misc{0.7.37} [Factorization Miscellaneous Nonsense] (Factorization-0.7.37.jar) Unloaded->Errored
factorization{0.7.37} [Factorization] (Factorization-0.7.37.jar) Unloaded->Errored
factorization.dimensionalSlice{0.7.37} [Factorization Dimensional Slices] (Factorization-0.7.37.jar) Unloaded->Errored
Forestry{2.2.0.1} [Forestry for Minecraft] (forestry-A-2.2.0.1.jar) Unloaded->Errored
GraviGun{1.5.0.2} [GraviGun] (GravityGun1.5.0v2.zip) Unloaded->Errored
Hats{1.3.1} [Hats] (Hats1.3.1.zip) Unloaded->Errored
HatStand{1.2.0} [HatStand] (HatStand1.2.0.zip) Unloaded->Errored
IC2NuclearControl{1.5.1} [Nuclear Control] (IC2NuclearControl-1.5.1.zip) Unloaded->Errored
iChunUtil{1.0.1} [iChunUtil] (iChunUtil1.0.1.zip) Unloaded->Errored
IC2{1.115.307-lf} [IndustrialCraft 2] (industrialcraft-2_1.115.307-lf.jar) Unloaded->Errored
inventorytweaks{1.54} [Inventory Tweaks] (InventoryTweaks-1.54.jar) Unloaded->Errored
IronChest{5.2.4.390} [Iron Chest] (ironchest-universal-1.5.1-5.2.4.390.zip) Unloaded->Errored
ModularForceFieldSystem{3.0.0} [Modular Force Field System] (MFFS_v3.0.0.101.jar) Unloaded->Errored
mmmPowersuits{0.6.0-444} [MachineMuse's Modular Powersuits] (ModularPowersuits-0.6.0-444.jar) Unloaded->Errored
PowersuitAddons{0.2.3-120} [Andrew2448's Modular Powersuits Addon] (MPSA-0.2.3-120_MPS-422.jar) Unloaded->Errored
Mystcraft{0.10.3.00} [Mystcraft] (mystcraft-uni-1.5.1-0.10.3.00.zip) Unloaded->Errored
NEIPlugins{1.0.8.0} [NEI Plugins] (NEIPlugins-1.0.8.0.jar) Unloaded->Errored
PortalGun{1.5.1} [PortalGun] (PortalGun1.5.1.zip) Unloaded->Errored
Railcraft{7.0.0.0} [Railcraft] (Railcraft_1.5.1-7.0.0.0.jar) Unloaded->Errored
SoulShards{1.27} [SoulShards] (SoulShards-v1.27-universal.zip) Unloaded->Errored
StevesCarts{2.0.0.a106} [Steve's Carts] (StevesCarts2.0.0.a106.zip) Unloaded->Errored
Thaumcraft{3.0.4c} [Thaumcraft] (Thaumcraft3.0.4c.zip) Unloaded->Errored
ThaumicBees{1.4.6 - 171} [ThaumicBees] (thaumicbees-1.4.6.jar) Unloaded->Errored
ThermalExpansion{2.4.0.1} [Thermal Expansion] (ThermalExpansion-2.4.0.1.jar) Unloaded->Errored
2013-05-02 19:32:58 [SEVERE] [ForgeModLoader] The following problems were captured during this phase
2013-05-02 19:32:58 [SEVERE] [ForgeModLoader] Caught exception from ThermalExpansion
java.lang.NullPointerException
at cpw.mods.fml.common.FMLModContainer.handleModStateEvent(FMLModContainer.java:491)
at sun.reflect.GeneratedMethodAccessor3.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:601)
at com.google.common.eventbus.EventHandler.handleEvent(EventHandler.java:74)
at com.google.common.eventbus.SynchronizedEventHandler.handleEvent(SynchronizedEventHandler.java:45)
at com.google.common.eventbus.EventBus.dispatch(EventBus.java:314)
at com.google.common.eventbus.EventBus.dispatchQueuedEvents(EventBus.java:296)
at com.google.common.eventbus.EventBus.post(EventBus.java:267)
at cpw.mods.fml.common.LoadController.propogateStateMessage(LoadController.java:165)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:601)
at com.google.common.eventbus.EventHandler.handleEvent(EventHandler.java:74)
at com.google.common.eventbus.SynchronizedEventHandler.handleEvent(SynchronizedEventHandler.java:45)
at com.google.common.eventbus.EventBus.dispatch(EventBus.java:314)
at com.google.common.eventbus.EventBus.dispatchQueuedEvents(EventBus.java:296)
at com.google.common.eventbus.EventBus.post(EventBus.java:267)
at cpw.mods.fml.common.LoadController.distributeStateMessage(LoadController.java:98)
at cpw.mods.fml.common.Loader.serverAboutToStart(Loader.java:814)
at cpw.mods.fml.common.FMLCommonHandler.handleServerAboutToStart(FMLCommonHandler.java:309)
at net.minecraft.server.integrated.IntegratedServer.func_71197_b(IntegratedServer.java:104)
at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:429)
at net.minecraft.server.ThreadMinecraftServer.run(SourceFile:573)