Error: The RSS file isn’t working

We tried to get the RSS file for this podcast - https://alan-bradley-k1e8.squarespace.com/episodes?format=rss - but it wouldn’t load for us.


Warning 1549: failed to load external entity "https://alan-bradley-k1e8.squarespace.com/episodes?format=rss"
  Line: 0
  Column: 0

Here’s our front page.