Podcast Plug-in and RSS issues

I just installed the podcast plug-in. When entering in the information to format the podcast plug-in, it rendered a feed of green-talk.com/feed/podcast. I did not think anything of it since my own feed is green-talk.com/feed.

When you look up the podcast feed, it throws a 404 error. I have no way to change it to the suggested https://www.green-talk.com/?feed=podcast.

I burned the feed=podcast to feedburner and every is okay except the podcasts are missing.

I have tried to contact caveman, the author of the plug-in but all of my comments remain under moderation on his site.

Does anyone have a suggestion. I am not techie. A redirect would not work since the original podcast feed does not work.