Help with audiobookshelf downloading deleted podcasts

I'm having issues with audiobookshelf continuously downloading old, unsubscribed podcasts. No matter how many times I delete them they come back and download hundreds of episodes. Each one also says "no rss feed" when I look for more info so I'm not sure how they are even being downloaded. I have even tried deleting the podcast library and starting over and they still come back. Is there a cache that I can clear?