Modpack Crashes right when a specific world loads up.

[RaidanAidan]

I am playing on a modpack, and when I load up my world, it brings me to the Technic Screen.

Here is the crash-report.

 

Pastebin: http://pastebin.com/mZfRTcfk

[plowmanplow]

Please provide links to your Technic pack page and/or API URL.

[RaidanAidan]

http://www.technicpack.net/modpack/details/ultra-modded-survival-pack.266012

[plowmanplow]

Other than a couple item ID conflicts the pack seems to work fine. If you are able to start other packs I would take up your issue with the modpack author. If you are not able to start other packs then I would suggest following up in the Tracker for the Launcher.