Directory "My Listings" page 404 error after theme change

I installed Directory on my site with no problems. After installation, however, we decided to switch WordPress themes. After the switch, the URL for the My Listings page generates a 404 error. ( Could there be a page missing in the new theme that I’m unaware of? Or perhaps that the new theme is unable to display “virtual” pages? The My Listings virtual page does exist in the Pages section. Thank you!