Cannot Edit Feed

Every time I go to edit one of my feed it gets hung on with a blue wheel. This error persists across both my two webstores. Nothing ever loads but after a few minutes the blue wheel disappears. I did some hunting on the form and have inspected the page. There are several errors:

Uncaught TypeError: Cannot read property ‘hasOwnProperty’ of null
at wppfm_requiresForAllOtherProductsField (wppfm_feed-html.min.js?ver=fr-1.27.0:1)
at wppfm_addFeedSourceRow (wppfm_feed-html.min.js?ver=fr-1.27.0:1)
at wppfm_fieldRow (wppfm_feed-form.min.js?ver=fr-1.27.0:1)
at wppfm_drawAttributeMappingSection (wppfm_feed-form.min.js?ver=fr-1.27.0:1)
at wppfm_editExistingFeed (wppfm_feed-form.min.js?ver=fr-1.27.0:1)
at HTMLDocument.<anonymous> (wppfm_feed-form.min.js?ver=fr-1.27.0:1)
at e (jquery.min.js?ver=3.5.1:2)
at t (jquery.min.js?ver=3.5.1:2)

I have also tried your list of tasks to get this fixed such as re-process, deactivating the plugin and reactivating, and so forth.