GUI GameOver Crash ? [1.6.4]

[Heltrato]

I was testing my new mob animation then suddenly it happens to be this.

 

Crash Report

 

2013-09-28 20:11:51 [iNFO] [sTDOUT] ---- Minecraft Crash Report ----
2013-09-28 20:11:51 [iNFO] [sTDOUT] // I let you down. Sorry 
2013-09-28 20:11:51 [iNFO] [sTDOUT] 
2013-09-28 20:11:51 [iNFO] [sTDOUT] Time: 9/28/13 8:11 PM
2013-09-28 20:11:51 [iNFO] [sTDOUT] Description: Updating screen events
2013-09-28 20:11:51 [iNFO] [sTDOUT] 
2013-09-28 20:11:51 [iNFO] [sTDOUT] java.lang.NullPointerException
2013-09-28 20:11:51 [iNFO] [sTDOUT] 	at net.minecraft.client.gui.GuiGameOver.actionPerformed(GuiGameOver.java:73)
2013-09-28 20:11:51 [iNFO] [sTDOUT] 	at net.minecraft.client.gui.GuiScreen.mouseClicked(GuiScreen.java:120)
2013-09-28 20:11:51 [iNFO] [sTDOUT] 	at net.minecraft.client.gui.GuiScreen.handleMouseInput(GuiScreen.java:208)
2013-09-28 20:11:51 [iNFO] [sTDOUT] 	at net.minecraft.client.gui.GuiScreen.handleInput(GuiScreen.java:176)
2013-09-28 20:11:51 [iNFO] [sTDOUT] 	at net.minecraft.client.Minecraft.runTick(Minecraft.java:1564)
2013-09-28 20:11:51 [iNFO] [sTDOUT] 	at net.minecraft.client.Minecraft.runGameLoop(Minecraft.java:908)
2013-09-28 20:11:51 [iNFO] [sTDOUT] 	at net.minecraft.client.Minecraft.run(Minecraft.java:836)
2013-09-28 20:11:51 [iNFO] [sTDOUT] 	at net.minecraft.client.main.Main.main(Main.java:93)
2013-09-28 20:11:51 [iNFO] [sTDOUT] 	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
2013-09-28 20:11:51 [iNFO] [sTDOUT] 	at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
2013-09-28 20:11:51 [iNFO] [sTDOUT] 	at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
2013-09-28 20:11:51 [iNFO] [sTDOUT] 	at java.lang.reflect.Method.invoke(Unknown Source)
2013-09-28 20:11:51 [iNFO] [sTDOUT] 	at net.minecraft.launchwrapper.Launch.launch(Launch.java:131)
2013-09-28 20:11:51 [iNFO] [sTDOUT] 	at net.minecraft.launchwrapper.Launch.main(Launch.java:27)
2013-09-28 20:11:51 [iNFO] [sTDOUT] 
2013-09-28 20:11:51 [iNFO] [sTDOUT] 
2013-09-28 20:11:51 [iNFO] [sTDOUT] A detailed walkthrough of the error, its code path and all known details is as follows:
2013-09-28 20:11:51 [iNFO] [sTDOUT] ---------------------------------------------------------------------------------------
2013-09-28 20:11:51 [iNFO] [sTDOUT] 
2013-09-28 20:11:51 [iNFO] [sTDOUT] -- Head --
2013-09-28 20:11:51 [iNFO] [sTDOUT] Stacktrace:
2013-09-28 20:11:51 [iNFO] [sTDOUT] 	at net.minecraft.client.gui.GuiGameOver.actionPerformed(GuiGameOver.java:73)
2013-09-28 20:11:51 [iNFO] [sTDOUT] 	at net.minecraft.client.gui.GuiScreen.mouseClicked(GuiScreen.java:120)
2013-09-28 20:11:51 [iNFO] [sTDOUT] 	at net.minecraft.client.gui.GuiScreen.handleMouseInput(GuiScreen.java:208)
2013-09-28 20:11:51 [iNFO] [sTDOUT] 	at net.minecraft.client.gui.GuiScreen.handleInput(GuiScreen.java:176)
2013-09-28 20:11:51 [iNFO] [sTDOUT] 
2013-09-28 20:11:51 [iNFO] [sTDOUT] -- Affected screen --
2013-09-28 20:11:51 [iNFO] [sTDOUT] Details:
2013-09-28 20:11:51 [iNFO] [sTDOUT] 	Screen name: net.minecraft.client.gui.GuiMainMenu
2013-09-28 20:11:51 [iNFO] [sTDOUT] Stacktrace:
2013-09-28 20:11:51 [iNFO] [sTDOUT] 	at net.minecraft.client.Minecraft.runTick(Minecraft.java:1564)
2013-09-28 20:11:51 [iNFO] [sTDOUT] 	at net.minecraft.client.Minecraft.runGameLoop(Minecraft.java:908)
2013-09-28 20:11:51 [iNFO] [sTDOUT] 	at net.minecraft.client.Minecraft.run(Minecraft.java:836)
2013-09-28 20:11:51 [iNFO] [sTDOUT] 	at net.minecraft.client.main.Main.main(Main.java:93)
2013-09-28 20:11:51 [iNFO] [sTDOUT] 	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
2013-09-28 20:11:51 [iNFO] [sTDOUT] 	at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
2013-09-28 20:11:51 [iNFO] [sTDOUT] 	at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
2013-09-28 20:11:51 [iNFO] [sTDOUT] 	at java.lang.reflect.Method.invoke(Unknown Source)
2013-09-28 20:11:51 [iNFO] [sTDOUT] 	at net.minecraft.launchwrapper.Launch.launch(Launch.java:131)
2013-09-28 20:11:51 [iNFO] [sTDOUT] 	at net.minecraft.launchwrapper.Launch.main(Launch.java:27)
2013-09-28 20:11:51 [iNFO] [sTDOUT] 
2013-09-28 20:11:51 [iNFO] [sTDOUT] -- System Details --
2013-09-28 20:11:51 [iNFO] [sTDOUT] Details:
2013-09-28 20:11:51 [iNFO] [sTDOUT] 	Minecraft Version: 1.6.4
2013-09-28 20:11:51 [iNFO] [sTDOUT] 	Operating System: Windows 7 (x86) version 6.1
2013-09-28 20:11:51 [iNFO] [sTDOUT] 	Java Version: 1.7.0_21, Oracle Corporation
2013-09-28 20:11:51 [iNFO] [sTDOUT] 	Java VM Version: Java HotSpot(TM) Client VM (mixed mode), Oracle Corporation
2013-09-28 20:11:51 [iNFO] [sTDOUT] 	Memory: 908606232 bytes (866 MB) / 1060372480 bytes (1011 MB) up to 1060372480 bytes (1011 MB)
2013-09-28 20:11:51 [iNFO] [sTDOUT] 	JVM Flags: 3 total; -Xincgc -Xmx1024M -Xms1024M
2013-09-28 20:11:51 [iNFO] [sTDOUT] 	AABB Pool Size: 21928 (1227968 bytes; 1 MB) allocated, 2 (112 bytes; 0 MB) used
2013-09-28 20:11:51 [iNFO] [sTDOUT] 	Suspicious classes: FML and Forge are installed
2013-09-28 20:11:51 [iNFO] [sTDOUT] 	IntCache: cache: 0, tcache: 0, allocated: 0, tallocated: 0
2013-09-28 20:11:51 [iNFO] [sTDOUT] 	FML: MCP v8.11 FML v6.4.18.898 Minecraft Forge 9.11.0.898 4 mods loaded, 4 mods active
2013-09-28 20:11:51 [iNFO] [sTDOUT] 	mcp{8.09} [Minecraft Coder Pack] (minecraft.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available->Available->Available
2013-09-28 20:11:51 [iNFO] [sTDOUT] 	FML{6.4.18.898} [Forge Mod Loader] (bin) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available->Available->Available
2013-09-28 20:11:51 [iNFO] [sTDOUT] 	Forge{9.11.0.898} [Minecraft Forge] (bin) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available->Available->Available
2013-09-28 20:11:51 [iNFO] [sTDOUT] 	monsterhunter{Alpha Development 0.3 } [MonsterHunterFrontier] (bin) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available->Available->Available
2013-09-28 20:11:51 [iNFO] [sTDOUT] 	Launched Version: 1.6
2013-09-28 20:11:51 [iNFO] [sTDOUT] 	LWJGL: 2.9.0
2013-09-28 20:11:51 [iNFO] [sTDOUT] 	OpenGL: Intel 965/963 Graphics Media Accelerator GL version 2.0.0 - Build 8.14.10.1930, Intel
2013-09-28 20:11:51 [iNFO] [sTDOUT] 	Is Modded: Definitely; Client brand changed to 'fml,forge'
2013-09-28 20:11:51 [iNFO] [sTDOUT] 	Type: Client (map_client.txt)
2013-09-28 20:11:51 [iNFO] [sTDOUT] 	Resource Pack: Default
2013-09-28 20:11:51 [iNFO] [sTDOUT] 	Current Language: English (US)
2013-09-28 20:11:51 [iNFO] [sTDOUT] 	Profiler Position: N/A (disabled)
2013-09-28 20:11:51 [iNFO] [sTDOUT] 	Vec3 Pool Size: ~~ERROR~~ NullPointerException: null
2013-09-28 20:11:51 [iNFO] [sTDOUT] #@!@# Game crashed! Crash report saved to: #@!@# C:\Users\TOSHIBA\Desktop\1.6MHF\forge\mcp\jars\.\crash-reports\crash-2013-09-28_20.11.51-client.txt
AL lib: (EE) alc_cleanup: 1 device not closed

 

I never edit any GUI codes thought i dont know how

[LexManos]

Somehow you've set the world to null before you should of.:

                this.mc.theWorld.sendQuittingDisconnectingPacket();