Unable to Play Saved Game With and Without Mods

I have the same exact problem! With or without mods, I cannot load any households (townies or my own) but starting a fresh saves works. I can enter CAS and build but no households as it crashes to desktop everytime. I do not want to lose this save file as I've been playing with it for years :( I'm interested in the answers on this thread, hope we get some help ! Weirdly it happens to every saves from 2025 to 2024, but I can load without any issues in 2023 save files with the same sims...