Error: The RSS file isn’t working

We tried to get the RSS file for this podcast - https://feeds.theincomparable.com/theincomparable - but it wouldn’t load for us.

array (
  'wrapperType' => 'track',
  'kind' => 'podcast',
  'artistId' => 886323464,
  'collectionId' => 388887532,
  'trackId' => 388887532,
  'artistName' => 'Jason Snell',
  'collectionName' => 'The Incomparable',
  'trackName' => 'The Incomparable',
  'collectionCensoredName' => 'The Incomparable',
  'trackCensoredName' => 'The Incomparable',
  'artistViewUrl' => 'https://podcasts.apple.com/us/artist/the-incomparable/886323464?uo=4',
  'collectionViewUrl' => 'https://podcasts.apple.com/us/podcast/the-incomparable/id388887532?uo=4',
  'feedUrl' => 'https://feeds.theincomparable.com/theincomparable',
  'trackViewUrl' => 'https://podcasts.apple.com/us/podcast/the-incomparable/id388887532?uo=4',
  'artworkUrl30' => 'https://is4-ssl.mzstatic.com/image/thumb/Podcasts113/v4/a1/7b/fc/a17bfc56-a5b9-5568-512e-531a2f43fc5f/mza_8069553825536430503.jpg/30x30bb.jpg',
  'artworkUrl60' => 'https://is4-ssl.mzstatic.com/image/thumb/Podcasts113/v4/a1/7b/fc/a17bfc56-a5b9-5568-512e-531a2f43fc5f/mza_8069553825536430503.jpg/60x60bb.jpg',
  'artworkUrl100' => 'https://is4-ssl.mzstatic.com/image/thumb/Podcasts113/v4/a1/7b/fc/a17bfc56-a5b9-5568-512e-531a2f43fc5f/mza_8069553825536430503.jpg/100x100bb.jpg',
  'collectionPrice' => 0.0,
  'trackPrice' => 0.0,
  'trackRentalPrice' => 0,
  'collectionHdPrice' => 0,
  'trackHdPrice' => 0,
  'trackHdRentalPrice' => 0,
  'releaseDate' => '2019-10-13T18:25:00Z',
  'collectionExplicitness' => 'cleaned',
  'trackExplicitness' => 'cleaned',
  'trackCount' => 300,
  'country' => 'USA',
  'currency' => 'USD',
  'primaryGenreName' => 'TV & Film',
  'contentAdvisoryRating' => 'Clean',
  'artworkUrl600' => 'https://is4-ssl.mzstatic.com/image/thumb/Podcasts113/v4/a1/7b/fc/a17bfc56-a5b9-5568-512e-531a2f43fc5f/mza_8069553825536430503.jpg/600x600bb.jpg',
  'genreIds' => 
  array (
    0 => '1309',
    1 => '26',
    2 => '1301',
    3 => '1482',
  ),
  'genres' => 
  array (
    0 => 'TV & Film',
    1 => 'Podcasts',
    2 => 'Arts',
    3 => 'Books',
  ),
)...https://itunes.apple.com/lookup?id=388887532

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