I made my first attempt to add opportunities to a completely working, tested career (ZFT) and I was notified of an error and I uploaded the only log generated. I only attempted 2 opportunities, 1 being a transfer from Criminal career and the other a regular go to the business and journalism rabbithole type. I've added what all I thought was necessary for the opportunity but obviously something is wrong/missing and I have no clue. If necessary I can upload the career for further inspection.

I got it worked out.