I've been using the pre-game editor for a while now, and it has never given me any issues. In every new game, I usually restructure the South American countries, but this time I'm experiencing a crash dump that I can't make sense of. This only happens when I enter advanced editing. I've checked every aspect, and everything seems to be in order, but I can't identify the problem. It only occurs when I try to verify a group of leagues, which includes the Liga Nacional C/D (a provisional name, in English called National League C/D, which contains two other leagues, similar to the Vanarama North and South in England) up to the Liga Nacional G. In other words, out of the 9 leagues I've created, only the first 6 can be verified, while leagues 7, 8, and 9 can't because they cause the crash dump.
I was wondering if you guys could help me find the error, or if it's an issue with my computer, which might be starting to fail.
https://www.mediafire.com/file/wtklzeqxpygapwz/Per%C3%BA_1.4.fmf/file