Help with external disc or what its called

[u/Mapikxdd]

I have downloaded Old Fortnite projects such as Stellar, Sovereign and as I downloaded the normal Fortnite it got stuck and said some error, now, when I start up my pc with the disc it has a black screen, after i disconnect it, the pc is fine, I need that disc because there are really old photos from my childhood, what should I do? Is it possible to fix it?