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Hello I'm trying to mod my minecraft by using the Magic Launcher and there is an issue that I hope someone could help me with? here is the error report if you could please help I would be thankful, Thanks!

Minecraft has crashed!
----------------------

Minecraft has stopped running because it encountered a problem; Failed to start game

A full error report has been saved to C:\Documents and Settings\Comans\Application Data\.minecraft\crash-reports\crash-2013-08-11_19.08.29-client.txt - Please include a copy of that file (Not this screen!) if you report this crash to anyone; without it, they will not be able to help fix the crash



--- BEGIN ERROR REPORT c24b12b8 --------
Full report at:
C:\Documents and Settings\Comans\Application Data\.minecraft\crash-reports\crash-2013-08-11_19.08.29-client.txt
Please show that file to Mojang, NOT just this screen!

Generated 11/08/13 7:08 PM

-- System Details --
Details:
Minecraft Version: 1.5.2
Operating System: Windows XP (x86) version 5.1
Java Version: 1.7.0_25, Oracle Corporation
Java VM Version: Java HotSpot(TM) Client VM (mixed mode, sharing), Oracle Corporation
Memory: 351662048 bytes (335 MB) / 518979584 bytes (494 MB) up to 518979584 bytes (494 MB)
JVM Flags: 2 total; -Xms512m -Xmx512m
AABB Pool Size: 0 (0 bytes; 0 MB) allocated, 0 (0 bytes; 0 MB) used
Suspicious classes: FML and Forge are installed
IntCache: cache: 0, tcache: 0, allocated: 0, tallocated: 0
FML: MCP v7.51 FML v5.2.2.684 Minecraft Forge 7.8.0.684 Optifine OptiFine_1.5.2_HD_U_D3 7 mods loaded, 7 mods active
mcp{7.44} [Minecraft Coder Pack] (minecraft.jar) Unloaded->Constructed->Pre-initialized->Initialized
FML{5.2.2.684} [Forge Mod Loader] (coremods) Unloaded->Constructed->Pre-initialized->Initialized
Forge{7.8.0.684} [Minecraft Forge] (coremods) Unloaded->Constructed->Pre-initialized->Initialized
jammyfurniture{4.4} [Jammy Furniture Mod] (jammy-furniture-mod.zip) Unloaded->Constructed->Pre-initialized->Initialized
MoCreatures{5.2.2} [DrZhark's Mo'Creatures Mod] (DrZharks MoCreatures Mod v5.2.2.zip) Unloaded->Constructed->Pre-initialized->Errored
GuiAPI{0.15.6} [GuiAPI] (GuiAPI-0.15.6-1.5.2.jar) Unloaded->Constructed->Pre-initialized->Initialized
CustomSpawner{2.2.2} [DrZhark's CustomSpawner] (CustomMobSpawner 2.2.2.zip) Unloaded->Constructed->Pre-initialized->Initialized
LWJGL: 2.4.2
OpenGL: Intel 965/963 Graphics Media Accelerator GL version 1.5.0 - Build 7.14.10.4924, Intel
Is Modded: Definitely; Client brand changed to 'fml,forge'
Type: Client (map_client.txt)
Texture Pack: Default
Profiler Position: N/A (disabled)
Vec3 Pool Size: ~~ERROR~~ NullPointerException: null

java.lang.IllegalArgumentException: Slot 4095 is already occupied by [email protected]bee265 when adding [email protected]
at net.minecraft.block.Block.<init>(Block.java:340)
at net.minecraft.block.BlockLeavesBase.<init>(SourceFile:10)
at drzhark.mocreatures.block.MoCBlockLeaf.<init>(MoCBlockLeaf.java:30)
at drzhark.mocreatures.MoCreatures.InitItems(MoCreatures.java:735)
at drzhark.mocreatures.MoCreatures.load(MoCreatures.java:383)
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:494)
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: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(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: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.initializeMods(Loader.java:690)
at cpw.mods.fml.client.FMLClientHandler.finishMinecraftLoading(FMLClientHandler.java:206)
at net.minecraft.client.Minecraft.func_71384_a(Minecraft.java:447)
at net.minecraft.client.MinecraftAppletImpl.func_71384_a(SourceFile:56)
at net.minecraft.client.Minecraft.run(Minecraft.java:732)
at java.lang.Thread.run(Unknown Source)
--- END ERROR REPORT 8046460e ----------