Problem with simflyers EDDF and AI Traffic

Hi,I have a problem with loading simflyers EDDF with any level of AI Traffic and i am not sure why.When i try to load it with AI Traffic loads normally until it gets to 98%traffic loaded then after 2-3 mins will crash with no error message,it just goes back to the desktop.I am not sure if it is an AI Traffic problem or not as occasionally i will have no problem with it(even with 100% traffic)but the majority of the time it crashes(95% of the time).If i set 0% AI it loads OK.This also happens most of the time with Simmersky,s Tokyo Narita scenery but with no other scenery(Heathrow Pro has lots more AI traffic yet it loads OK every time with 100% AI Traffic)and i don,t have a problem with any of the other simflyers sceneries.I thought it may be a problem with conflicting AFCAD,s as i have multiple AFCAD,s for these sceneries so i kept just one AFCAD for each scenery and it still happens,and other sceneries have multiple AFCAD,s without a problem.I really have no idea why it is happening.These are two of my favorite sceneries so i am anxiuos to fix the problem.Has this happened to anyone else?Does anyone have any idea what the problem is and how to fix it?Excuse the long winded post.Thanks to anyone out there who can help!