Help please

A few weeks ago I was adding a photo to my album from my personal photos but it wasn't loading so I continued to add it in hopes that it would actually load. After a while it ended up loading but now I have like 6 blank photos that won't go away no matter what whenever I click add photo. (I hope that makes sense) This has happened to me once before but i can't remember how tf i fixed it. If anyone knows how to fix this I would really appreciate it!