I submitted my feed to tunein.com, and I received an email back from them saying that the feed was invalid.
Here is what they sent:
Hello Thank you for contacting us regarding this issue. We were unable to add the podcast feed that you've submitted to TuneIn. This is likely due to your feed missing audio files or the feed does not conform to the RSS 2.0 specifications. For more information about this standard, please visit: https://cyber.harvard.edu/rss/rss.html Let me know if you have any other questions. Sincerely, TuneIn Broadcaster Support
Here is the URL of my feed: https://www.loatoday.net/feed/mp3
What am I doing wrong?