Here's my crash report, can someone explain what i need to do:

--- BEGIN ERROR REPORT 2d2f9738 --------
Generated 10/21/12 10:51 AM

• Minecraft Version: 1.3.2
• Operating System: Windows 7 (amd64) version 6.1
• Java Version: 1.7.0_03, Oracle Corporation
• Java VM Version: Java HotSpot(TM) 64-Bit Server VM (mixed mode), Oracle Corporation
• Memory: 406373176 bytes (387 MB) / 519110656 bytes (495 MB) up to 1037959168 bytes (989 MB)
• JVM Flags: 2 total; -Xmx1024m -Xms512m
• FML: FML v3.1.35.394 Minecraft Forge 4.2.5.303 30 mods loaded, 30 mods active
  FML Forge Mod Loader Unloaded->Constructed->Pre-initialized->Initialized
  Forge Minecraft Forge Unloaded->Constructed->Pre-initialized->Initialized
  mod_CodeChickenCore CodeChicken Core Unloaded->Constructed->Pre-initialized->Initialized
  mod_NotEnoughItems Not Enough Items Unloaded->Constructed->Pre-initialized->Initialized
  mod_NiftyCraft mod_NiftyCraft Unloaded->Constructed->Pre-initialized->Initialized
  AdvancedMachines [IC2 Advanced Machines Addon](AdvancedMachines 4.2.zip) Unloaded->Constructed->Pre-initialized->Initialized
  BuildCraft|Core BuildCraft Unloaded->Constructed->Pre-initialized->Initialized
  BuildCraft|Builders BC Builders Unloaded->Constructed->Pre-initialized->Initialized
  BuildCraft|Energy BC Energy Unloaded->Constructed->Pre-initialized->Initialized
  BuildCraft|Factory BC Factory Unloaded->Constructed->Pre-initialized->Initialized
  BuildCraft|Transport BC Transport Unloaded->Constructed->Pre-initialized->Initialized
  BuildCraft|Silicon BC Silicon Unloaded->Constructed->Pre-initialized->Initialized
  ComputerCraft ComputerCraft Unloaded->Constructed->Pre-initialized->Initialized
  CCTurtle ComputerCraft Turtles Unloaded->Constructed->Pre-initialized->Initialized
  ExtraBees Extra Bees Unloaded->Constructed->Pre-initialized->Initialized
  ExtrabiomesXL ExtrabiomesXL Unloaded->Constructed->Pre-initialized->Errored
  Forestry Forestry for Minecraft Unloaded->Constructed->Pre-initialized->Initialized
  GNO GenerateNetherOres Unloaded->Constructed->Pre-initialized->Initialized
  mod_ImmibisCore Immibis Core Unloaded->Constructed->Pre-initialized->Initialized
  IC2 IndustrialCraft 2 Unloaded->Constructed->Pre-initialized->Initialized
  mod_InvTweaks Inventory Tweaks Unloaded->Constructed->Pre-initialized->Initialized
  IronChest Iron Chest Unloaded->Constructed->Pre-initialized->Initialized
  MontyPylon [More Pistons](More Pistons 1.0.1 for [1.3.2].zip) Unloaded->Constructed->Pre-initialized->Initialized
  PortalGun PortalGun Unloaded->Constructed->Pre-initialized->Initialized
  Railcraft Railcraft Unloaded->Constructed->Pre-initialized->Initialized
  RopesPlus [Ropes+](RopePlus 1.3.2.zip) Unloaded->Constructed->Pre-initialized->Initialized
  ThermalExpansion|Core Thermal Expansion Unloaded->Constructed->Pre-initialized->Initialized
  ThermalExpansion|Factory Factory Unloaded->Constructed->Pre-initialized->Initialized
  snyke7_Transformers [Transformers](Transformers v1.4a Universal.zip) Unloaded->Constructed->Pre-initialized->Initialized
  mod_TubeStuff TubeStuff Unloaded->Constructed->Pre-initialized->Initialized
• LWJGL: 2.4.2
• OpenGL: ATI Mobility Radeon HD 4200 Series GL version 3.2.9704 Compatibility Profile Context, ATI Technologies Inc.
• Is Modded: Definitely; 'forge,fml'
• Type: Client
• Texture Pack: Default
• Profiler Position: N/A (disabled)

cpw.mods.fml.common.LoaderException: java.lang.reflect.InvocationTargetException
at cpw.mods.fml.common.LoadController.transition(LoadController.java:102)
at cpw.mods.fml.common.Loader.initializeMods(Loader.java:640)
at cpw.mods.fml.client.FMLClientHandler.finishMinecraftLoading(FMLClientHandler.java:183)
at net.minecraft.client.Minecraft.a(Minecraft.java:461)
at net.minecraft.client.Minecraft.run(Minecraft.java:748)
at java.lang.Thread.run(Unknown Source)
Caused by: java.lang.reflect.InvocationTargetException
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
at java.lang.reflect.Method.invoke(Unknown Source)
at cpw.mods.fml.common.FMLModContainer.handleModStateEvent(FMLModContainer.java:437)
at sun.reflect.GeneratedMethodAccessor4.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
at java.lang.reflect.Method.invoke(Unknown Source)
at com.google.common.eventbus.EventHandler.handleEvent(EventHandler.java:69)
at com.google.common.eventbus.SynchronizedEventHandler.handleEvent(SynchronizedEventHandler.java:45)
at com.google.common.eventbus.EventBus.dispatch(EventBus.java:317)
at com.google.common.eventbus.EventBus.dispatchQueuedEvents(EventBus.java:300)
at com.google.common.eventbus.EventBus.post(EventBus.java:268)
at cpw.mods.fml.common.LoadController.propogateStateMessage(LoadController.java:124)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
at java.lang.reflect.Method.invoke(Unknown Source)
at com.google.common.eventbus.EventHandler.handleEvent(EventHandler.java:69)
at com.google.common.eventbus.SynchronizedEventHandler.handleEvent(SynchronizedEventHandler.java:45)
at com.google.common.eventbus.EventBus.dispatch(EventBus.java:317)
at com.google.common.eventbus.EventBus.dispatchQueuedEvents(EventBus.java:300)
at com.google.common.eventbus.EventBus.post(EventBus.java:268)
at cpw.mods.fml.common.LoadController.distributeStateMessage(LoadController.java:81)
at cpw.mods.fml.common.Loader.initializeMods(Loader.java:639)
... 4 more
Caused by: java.lang.IllegalStateException: value is absent
at com.google.common.base.Absent.get(Absent.java:40)
at extrabiomes.Module.do_init(Module.java:113)
at extrabiomes.Module.init(Module.java:44)
at extrabiomes.Extrabiomes.init(Extrabiomes.java:54)
... 29 more
--- END ERROR REPORT 9c4aa63f ----------

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