Existing saves don't load but a new save works

SIMS STUCK ON FIRST LOADING SCREEN ☹️

I've read all the different solutions on here, but it doesn't seem to help ☹️.

My game worked fine, until it didn't. Whenever I try to boot up the game, im stuck on the first loading screen, while the music is running in the back and the plumbob is spinning. I've deleted the sims 4 folder in documents, created a new game, saved and quit and tried slowly implementing my old save files. The problem seem to occur, whenever I put my old save files in, and its ALL OF THEM ☹️ I've removed all of the CC's, tray files that didn't work and repaired the game - nothing works ☹️. Is there any other solutions?!

Edit - moved to the Game Issues forum, edited title to better reflect issue (Bluebellflora)