Problem Starting Up

[tagoniki]

When I try to open up any mod pack from the launcher, often times it will tell me my java has crashed, other times it works, does anyone know the problem's cause?

Edit: This is my crash report afterwards

Added URL to classpath: file:/C:/Users/Pawpaw/Documents/Zach's%20Stuff/Minecraft/Feed%20The%20Beast/Direwolf20/instMods/OptiFine_1.4.6_HD_D5.zip
Added URL to classpath: file:/C:/Users/Pawpaw/Documents/Zach's%20Stuff/Minecraft/Feed%20The%20Beast/Direwolf20/instMods/MinecraftForge.zip
Added URL to classpath: file:/C:/Users/Pawpaw/Documents/Zach's%20Stuff/Minecraft/Feed%20The%20Beast/Direwolf20/minecraft/bin/minecraft.jar
Added URL to classpath: file:/C:/Users/Pawpaw/Documents/Zach's%20Stuff/Minecraft/Feed%20The%20Beast/Direwolf20/minecraft/bin/lwjgl.jar
Added URL to classpath: file:/C:/Users/Pawpaw/Documents/Zach's%20Stuff/Minecraft/Feed%20The%20Beast/Direwolf20/minecraft/bin/lwjgl_util.jar
Added URL to classpath: file:/C:/Users/Pawpaw/Documents/Zach's%20Stuff/Minecraft/Feed%20The%20Beast/Direwolf20/minecraft/bin/jinput.jar
Loading natives...
Natives loaded...
Loading minecraft class
mc = class net.minecraft.client.Minecraft
field amount: 67
Fixed Minecraft Path: Field was private static java.io.File net.minecraft.client.Minecraft.an
MCDIR: C:\Users\Pawpaw\AppData\Roaming\.minecraft
Launching with applet wrapper...

 

[Ashzification]

Please post your entire client side console log on pastebin.com and link your paste URL here.

 

[tagoniki]

Sorry, but now its working again, I will post when it messes up

 

[tagoniki]

http://pastebin.com/iLW6Gp1M It has started again, this is the error port

 

[Ashzification]

Do this: http://desk.feed-the-beast.com/index.php?/Knowledgebase/Article/View/9/0/basic-troubleshooting