Listings Page and Categories not displaying correctly

Hi! I have successfully added categories and new listings however, when I viewed the listings page it is not displaying properly. I have added a screenshot of the listings page. You will see that the page is displaying only 1 listing. Same thing happens to the category page.

I have tried deactivating all other plugins except Directory but nothing change.
I tried changing default theme to Twenty Fifteen and the listings are displayed there but I need the listings & categories to display properly too on X theme.

Could you please help me on how to achieve this?