How to load my photos from my album on an iPhone?

When I try to look at a photo from my album (on an iPhone) it shows that it's loading on the bottom right corner but then it stops loading 1/4 of the way and then it says there was an error downloading it. It doesn't let me send, airdrop, email, ect with any of the photos that won't load completely. I also can't put them on a flashdrive. How do I load the photos completely?

I hate hearing this too but: Have you tried turning it off and turning it back on? Lol
If that doesn't work double hit home button then when you see your recent apps swipe the photo gallery up. Try opening it again and if it doesn't work thennnnn… Plug your iPhone into a computer. Allow your computer to
connect to it then a file should open with all of the photo's. Works on mac and pc. If you want to save them hit
import and it downloads