Broken Header Media

Hi, I was cleaning up my images after all of my images were randomly copied about a hundred times and pushed me over my disk usage and in getting rid of the copies I somehow got rid of an image that was being used in my header media. I had set the header up to randomly display an image out of a selection of my favorite shots. Now if I set it to randomly shuffle images one image comes up broken on the site but doesn't appear in the header customization area. I'm at a loss as to how I find this broken image and I'm trying to keep from uninstalling and reinstalling the theme to try and fix it. Any help provided would be greatly appreciated. Thanks, Vera