Images appear corrupt

I created a project in Adobe Premiere about a month ago and now in my photos file where the images used for the project are, these look corrupt. Also when playing the video project on the areas where the photos should appear, it says media pending. Could this be because I had added effects onto them? I've deleted the effects but yet no change has occurred. I now need the photos for another project and unfortunately I don't have them backed up anywhere else. Doesn't seem like anyone else on the internet has encountered this issue as can't find any answers.