FTB Monster launching problems

[Loxd1]

I have been playing around with the FTB Monster pack and I decided to add some extra mods to it and after installing certain mods which I can't remember I got this crash report and I'm hoping if someone can explain it and possibly post a solution.

Here is the log: (I think the error is somewhere at the bottom but I know nothing about these things)
http://pastebin.com/mDxza2Eg

Here is the crash report:
http://pastebin.com/eVtQVAg4

 

[UniZero]

Please don't post walls of text always use pastebin. The error mentions atomic science try removing that.

 

[Loxd1]

Sorry, I used pastebin for the log but not the crash report.
I did try removing Atomic Science and I had a different error, but I tried removing Mob Dismemberment which did the trick.
Thanks for your help!
Now I just need to fix the IDConflicts but that shouldn't be difficult.
EDIT:It works now but is there a way to keep the Atomic Science mod?