As a very frequent visitor of the site, I have noticed an increase in the number of times where a photo is replaced with the "default image". Could anyone explain to me what this is and what I should do to fix it. Of the top 5 photos placed at the top of the site, 3 of them lead me to the default image until I ask for the large image.Even some thumbnails are messed up. Please give me a fix, I love these photos!!!