Minecraft no carga el mundo

hola, queria preguntar si alguien sabe como recuperar mi mundo, se que se corrompio y no me lo abre ni mcedit, tiene varios mods y por si a alguien le sirve, les dejo aqui el crsh report de cuando abro el mundo:

—- Minecraft Crash Report —-
// On the bright side, I bought you a teddy bear!

Time: 17/05/15 14:13
Description: Updating screen events

java.lang.OutOfMemoryError: Java heap space
at net.minecraft.client.gui.LoadingScreenRenderer.func_73718_a(SourceFile:77)
at net.minecraft.client.gui.LoadingScreenRenderer.func_73719_c(SourceFile:62)
at net.minecraft.client.Minecraft.continueWorldLoading(Minecraft.java:2026)
at net.minecraft.client.Minecraft.func_71371_a(Minecraft.java:2010)
at net.minecraft.client.gui.GuiSelectWorld.func_74064_e(SourceFile:157)
at net.minecraft.client.gui.GuiSelectWorld.func_73875_a(SourceFile:122)
at net.minecraft.client.gui.GuiScreen.func_73864_a(SourceFile:69)
at net.minecraft.client.gui.GuiScreen.func_73867_d(SourceFile:128)
at net.minecraft.client.gui.GuiScreen.func_73862_m(SourceFile:107)
at net.minecraft.client.Minecraft.func_71407_l(Minecraft.java:1564)
at net.minecraft.client.Minecraft.func_71411_J(Minecraft.java:908)
at net.minecraft.client.Minecraft.func_99999_d(Minecraft.java:836)
at net.minecraft.client.main.Main.main(SourceFile:101)
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 net.minecraft.launchwrapper.Launch.launch(Launch.java:57)
at net.minecraft.launchwrapper.Launch.main(Launch.java:18)

A detailed walkthrough of the error, its code path and all known details is as follows:
—————————————————————————————

— Head —
Stacktrace:
at net.minecraft.client.gui.LoadingScreenRenderer.func_73718_a(SourceFile:77)
at net.minecraft.client.gui.LoadingScreenRenderer.func_73719_c(SourceFile:62)
at net.minecraft.client.Minecraft.continueWorldLoading(Minecraft.java:2026)
at net.minecraft.client.Minecraft.func_71371_a(Minecraft.java:2010)
at net.minecraft.client.gui.GuiSelectWorld.func_74064_e(SourceFile:157)
at net.minecraft.client.gui.GuiSelectWorld.func_73875_a(SourceFile:122)
at net.minecraft.client.gui.GuiScreen.func_73864_a(SourceFile:69)
at net.minecraft.client.gui.GuiScreen.func_73867_d(SourceFile:128)
at net.minecraft.client.gui.GuiScreen.func_73862_m(SourceFile:107)

— Affected screen —
Details:
Screen name: net.minecraft.client.gui.GuiMainMenu
Stacktrace:
at net.minecraft.client.Minecraft.func_71407_l(Minecraft.java:1564)
at net.minecraft.client.Minecraft.func_71411_J(Minecraft.java:908)
at net.minecraft.client.Minecraft.func_99999_d(Minecraft.java:836)
at net.minecraft.client.main.Main.main(SourceFile:101)
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 net.minecraft.launchwrapper.Launch.launch(Launch.java:57)
at net.minecraft.launchwrapper.Launch.main(Launch.java:18)

— System Details —
Details:
Minecraft Version: ~~ERROR~~ OutOfMemoryError: Java heap space
Operating System: Windows 8 (amd64) version 6.2
Java Version: 1.7.0_51, Oracle Corporation
Java VM Version: Java HotSpot(TM) 64-Bit Server VM (mixed mode), Oracle Corporation
Memory: 890338760 bytes (849 MB) / 1060372480 bytes (1011 MB) up to 1060372480 bytes (1011 MB)
JVM Flags: 6 total; -XX:HeapDumpPath=MojangTricksIntelDriversForPerformance_javaw.exe_minecraft.exe.heapdump -Xmx1G -XX:+UseConcMarkSweepGC -XX:+CMSIncrementalMode -XX:-UseAdaptiveSizePolicy -Xmn128M
AABB Pool Size: 0 (0 bytes; 0 MB) allocated, 0 (0 bytes; 0 MB) used
Suspicious classes: FML and Forge are installed
IntCache: cache: 11, tcache: 0, allocated: 5, tallocated: 61
FML: MCP v8.04 FML v6.2.62.871 Minecraft Forge 9.10.1.871 Optifine OptiFine_1.6.2_HD_U_C4 23 mods loaded, 23 mods active
mcp{8.04} [Minecraft Coder Pack] (minecraft.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available
FML{6.2.62.871} [Forge Mod Loader] (minecraftforge-9.10.1.871.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available
Forge{9.10.1.871} [Minecraft Forge] (minecraftforge-9.10.1.871.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available
CodeChickenCore{0.9.0.5} [CodeChicken Core] (minecraft.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available
NotEnoughItems{1.6.1.4} [Not Enough Items] (NotEnoughItems-1.6.2-1.6.1.4-universal.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available
IC2{1.118.401-lf} [IndustrialCraft 2] (industrialcraft-2_1.118.401-lf.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available
AdvancedMachines{5.1.2} [IC2 Advanced Machines Addon] (AdvancedMachines_1.6.2.zip) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available
BiblioCraft{1.5.4} [BiblioCraft] (BiblioCraft[v1.5.4].zip) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available
BuildCraft|Core{4.1.2} [BuildCraft] (buildcraft-A-1.6.2-4.1.2.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available
BuildCraft|Builders{4.1.2} [BC Builders] (buildcraft-A-1.6.2-4.1.2.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available
BuildCraft|Energy{4.1.2} [BC Energy] (buildcraft-A-1.6.2-4.1.2.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available
BuildCraft|Factory{4.1.2} [BC Factory] (buildcraft-A-1.6.2-4.1.2.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available
BuildCraft|Transport{4.1.2} [BC Transport] (buildcraft-A-1.6.2-4.1.2.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available
BuildCraft|Silicon{4.1.2} [BC Silicon] (buildcraft-A-1.6.2-4.1.2.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available
Chisel{1.4.8} [Chisel] (Chisel-Mod-1.6.2.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available
Forestry{2.3.0.0} [Forestry for Minecraft] (forestry-A-2.3.0.0.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available
pamharvestcraft{1.0} [Pam’s HarvestCraft Base] (HarvestCraft-Mod-1.6.2.zip) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available
HungerOverhaul{1.6.X-2l} [Hunger Overhaul] (hungeroverhaul-1.6.X-2l-build3.zip) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available
inventorytweaks{1.56} [Inventory Tweaks] (InventoryTweaks-MC1.6.2-1.56-b77.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available
IronChest{5.3.14.512} [Iron Chest] (ironchest-universal-1.6.2-5.3.14.512.zip) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available
LogisticsPipes|Main{0.7.4.dev.72} [Logistics Pipes] (LogisticsPipes-MC1.6.2-0.7.4.dev.72.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available
AdvancedSolarPanel{3.3.8} [Advanced Solar Panels] (mod_AdvancedSolarPanels_3_3_8.zip) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available
NEIPlugins{1.1.0.6} [NEI Plugins] (NEIPlugins-1.1.0.6.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available
Launched Version: 1.6.2-Forge9.10.1.871
LWJGL: 2.9.0
OpenGL: GeForce GTX 660/PCIe/SSE2 GL version 4.5.0 NVIDIA 350.12, NVIDIA Corporation
Is Modded: Definitely; Client brand changed to ‘fml,forge’
Type: Client (map_client.txt)
Resource Pack: Default
Current Language: English (US)
Profiler Position: N/A (disabled)
Vec3 Pool Size: ~~ERROR~~ NullPointerException: null