This is happening when you are trying to view photos on your computer, or your phone?
Can you check to see what the Format is of the images that are broken?
If it was my device, I'd move ALL my photos to my computer / cloud & Clear BOTH Cache & Data for the camera.
I'd also try using a different Gallery app, ie: F-Stop Gallery & see if the same problem occurs with a different Gallery.
You can try Resetting the Camera Settings from the Camera > Settings & Reset.
That should get you started anyway.