Sanskar mishra

Hello, about 3 days back my game experienced a bug that didnt allow me to load my save files. i couldnt load the autosave or the manual one. Downloaded the update because i had read that it will resolve the issue. Now that i have finally done it, I still cant load the save files. It shows an error "E-B51D0002". I checked the error tag on playstation support and it doesnt exist. I'm about 15-20 hours in i believe. anyway i can get my save files to load up? I'm on ps4