Images on post disapear on clicking to category

Hi eveyone!!

here is my site: https://norest4thecollectors.x10hosting.com/disco

On clicking to the category link (7″), all images in gallery disappear.

I post using Windows Live Writer and a code between the div tag “post” which insert itself into the theme to get the final result.

Anyone’s got a solution to this issue. Many thanks!!