Image problems

I have several sites. All hosted for various reasons differently. I am helping someone with a buddypress site. The main issue I am having is with images. They just won’t post. Upload works fine, but instead of an image I get an icon or a broken box. Small rectangular icon with colored rocks inside. If I edit image, the image is there, but it will not post as an image, just a big empty placeholder. The site is http://thementalgame.bestinublog.com/the-athlete-within-you/

Point me in the right direction please to fix. Thank you.