Episodes are not showing in feed

After a 3-months break I released another podcast episode yesterday. Everything works fine on my website and podlove showed me green marks all over.
Itunes however did not show the new episode and when I checked on https://podcastsconnect.apple.com it gave me the error message: No episodes exist in your feed.
Which unfortunately is true :frowning:
My feed is: https://clearvision-coaching.de/feed/mp3/
There are 5 episodes on my website. And the first 4 of them also appeared on itunes.

What can I do to make my episodes appear in the feed?