I have 4 save files + their corresponding auto saves (so 8 total) of the same franchise so I don't have to start a new franchise after 5 seasons if one of my files get corruption, but sadly it's the game that's causing this issue. I also have 4 addition save files that i put on another folder after every season, but even those suffer from crashing after a few games. I have created additional saves files from the files that do load up, but game will still crash after playing games.
Asked EA forum for some help/fix/workaround about this issue and people are having the same issue, but no response from the EA Mods.