Admin Backend Error

When clicking on paid, unpaid and expired links on Directory Listings page in backend, I get the following error message across the top of the page.

http://ococ.wpengine.com/wp-admin/edit.php?post_status=pending&post_type=wpbdp_listing&wpbdmfilter=paid

Notice: Trying to get property of non-object in /nas/content/live/ococ/wp-content/plugins/business-directory-plugin/admin/class-admin-listings.php on line 294

Also notice that my test listings that was cancelled and is now unpaid, cancelled and the term expired does not show up under any of those links. Is this broken? How is my Admin supposed to know that a listing is expired or cancelled so it can be removed from the frontend?

https://ww.wp.xz.cn/plugins/business-directory-plugin/