Black Boxes replaced photos in camera roll
Can someone please help me with this? I found various threads about this but nothing is helping. I have recently ran out of storage on my phone and proceeded to delete many things. In the process, I played around with ICloud then somehow ended up missing many pictures in my Iphone’s gallery. At first I thought it was a glitch so I deleted many black boxed pictures but I think that exacerbated the situation. Not only can I not see these photos, but now I deleted a bunch which i cannot get back in case I am able to fix this. Note: I have tried everything from restarting my phone to restoring files and third party softwares. Nothing helped me. I really need these irreplaceable photos back, so I would appreciate some help here.
TL;DR: How to restore black photos (shown in attachment below) back to original along with ones I manually deleted after I messed around with ICloud. These pictures only appear fully black and cannot be uploaded anywhere. I think I interrupted the syncing process and deleted some therefore they got corrupted.
iPhone 6s, iOS 13