Gumcast has migrated hosting companies which means that podcast feed subscriptions URLs will change.
Podcast apps should update automatically feeds from gumcast-api.herokuapp.com to api.gumcast.com, however sometimes this process fails due to bad podcast client behavior.
If you experience issues with your feed no longer updating, you may need to log into gumcast and generate a new feed URL, unsubscribe from your old subscription in your podcast app and re-add the new URL. Apologies for the inconvenience. Old podcast feed URLs will work until November 28, 2022.