Category section of classified ad site malfunction

I’m building a classified ads WP site with (twenty twenty) as my theme and (classified listings) as my plugin- however, the category section of my listings displays only the description of the page leaving out the actual ad. I’m sure the fault is from this theme because it resolves once I change to another theme. My dilemma here is that this theme checks all the requirements I want for my site and I haven’t been able to find a much similar one to this. I just love twenty twenty’s color customization and multiple menu navigation choices. Please help me out. How can I make my ad placements visible on this theme.

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