GAMe Crash - Editor Data

Hi Guys. I am having an issue of the game crashing at the loading screen when I add custom leagues. I tried FMU's Around the Globe Megapack and qwert2 ArabFM.net Leagues Megapack. Other editor data files do not crash the game (such as the transfer updates and Dave's Realism pack). 

Any thoughts of how I could get around this issue?