My game save file has been unable to save properly since the beginning of May 2025. Whether it is automatic saving or manual saving, it will immediately crash and exit, and I can't continue playing the game at all. It should be noted that my save file has been played for 2,600 hours. Maybe this problem is caused by the file size. After all, before the problem of not being able to save properly occurred, the train was already seriously stuck when running. I want to ask for help, how can I solve this problem? After all, I have been playing for so long, and I don't want to give up this save file.