Problem With all the Modpacks

[ShakenBaconDude]

Launcher Version: Dont know

Operating System: Dont know

Java Version: Dont know

Antivirus Program:

Description of Problem:

I know i have the latest version for java and Technic Launcher.And I have a problem,Every time i open a mod for example:Hexxit the FML Doesnt load and when it done it shoows the Hexxit minecraft screen and the screen is white then like in 2 seconds it just closes.Same happens for Tekkit and ALL the mod packs.Also I have an IMac.Please help i want to play Hexxit Really bad.

Error Messages:

Error Log:

[ShakenBaconDude]

PLEASE HELP ME!