From what I’ve read so far, apparently after the URL for the game changed from TGR 2 days ago, every file uploaded prior to the url change broke. Thumbnails still seem to work so there’s still a possibility of getting them back, but otherwise for the time being the only way to bring these photos back is for the poster to edit and manually reupload them. Headless is hopefully trying to fix it since he responded to site feedback on it earlier. This thread should give some more information about this situation.
Important edit: Actually after some testing it seems all you really need to do to is just edit your post in any way to get the files back