Nevermind, you already posted everything that I need to know.
Checking for the file the server responds like this:
% curl -I https://thebrandinggirl.com/wp-content/uploads/podcast/01-falling-in-love-with-the-process.mp3
date: Wed, 13 Dec 2017 23:38:24 GMT
set-cookie: __cfduid=d42b79447c5eb7a7d8544fdb44ddaaf211513208304; expires=Thu, 13-Dec-18 23:38:24 GMT; path=/; domain=.thebrandinggirl.com; HttpOnly
last-modified: Sun, 10 Dec 2017 08:33:39 GMT
strict-transport-security: max-age=0; includeSubDomains; preload
This list should include a line
But it doesn’t. This is done by your web server. Podlove Publisher is not involved in returning the request. So you need to have your web server setup fixed.
For more information see: