Old RSS Feed not working with Feedburner Feedsmith

So I loaded the Feedburner Feedsmith plug in and did all my sets ups.

The new feed works great

https://feeds.feedburner.com/BearmanCartoons

Problem is the old feed no longer works

https://beartoons.com/feed

Which means anyone who subscribed before switching to feedburner is no longer seeing any updated posts in their RSS reader. How do I correct?

Thanks