Somebody please help me with my storage

So basically I was playing god of war 3 when my usb started acting up so I unplugged it and plugged it back in. But now i went to storage and i got notifications saying the usb wasn’t supported. So I went to storage and it said I could turn it into a usb, so I did that and now all my games from the usb is gone leaving me 4 games. Someone please help me with this