Related post section not working - The 7 Theme

Hello, I have been using the 7 theme.
Recently i noticed my “related articles” section is not loading thumbnails (featured image?). Preferbably fixinng it would be the best solutionn , but unntil i fix it i would like to at least disable the “related posts” feature.
Heres a screenshot and a link of the section thats not working.

Anny help would be appreciated, thanks in advance.