Error when Starting launcher

[Tommynov1000]

I am playing FTB ultimate pack on a low end computer, and have disabled quite a bit of mods. I usually am able to pin point what's wrong, but I'm not sure what this means.

Pastebin: http://pastebin.com/6qJrufKRError starts on line 231.

 

[Ashzification]

To establish a baseline, please read the quote. Many problems are solved by the troubelshooting guide, and those that aren't, we can work on from here.

Please read below. Please be sure to read all of the info available in the 2 articles.

Spoiler

Please follow these steps exactly: http://desk.feed-the-beast.com/index.php?/Knowledgebase/Article/View/9/0/basic-troubleshooting
This is to rule out any issues with your setup.
Please attempt to launch the modpack, and open a new world save to make sure the setup is correct.
Now, continue on to check your previous saves, changes to the pack, textures, etc. until you're able to reproduce the error with the clean setup.

When the error has been repeated, please post your complete client-side (launcher) console log in debug-mode to pastebin.com and link your paste URL here.
To find your logs and prevent them from expiring: http://desk.feed-the-beast.com/inde...29/1/what-log-do-you-need-where-can-i-find-it

 

[Tommynov1000]

I re-downloaded java + FTB, and it seems not to be part of the downloading process. However, I disabled the same mods as before, and I found that it had started fine. My only guess would be when I switched the configs to my old configs, as I didn't expect it to cause a problem. However, the problem is fixed now, thanks!