game crashed and i lost my entire day's saves

hi! The only time that I did get the error code was when I created tried to save over a save file when there were other save slots available. I wouldn't get an error if I created a new safe file, so I did that. Once I filled up my 10 available saves, it appeared like the game was working normally, as in, I could save to the same save slot without an error. (btw the error code i got before was error code 0, and it only said that the game couldn't save)

When I went back to load that slot, however, all of my progress was gone, as if I never saved since I originally created the save file. Also I don't have onedrive as I'm on ps4.

thanks for responding