Product Images are Missing

Hi, I am working on an e-commerce [ redundant link removed ] developed in WordPress. I am having some problems regarding the product images. On some of the old product pages, the images are vanished or missing even I had uploaded them. There are small icons showing instead of image. The images are not displaying.
Is this a database problem or some other problem? Images are in the media library but not on the pages. How can i fix them? Thanks

• This topic was modified 4 years, 9 months ago by Jan Dembowski. Reason: Moved to Fixing WordPress, this is not an Everything else WordPress topic

The page I need help with: [log in to see the link]