Error: The RSS file isn’t working

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

array (
  'wrapperType' => 'track',
  'kind' => 'podcast',
  'collectionId' => 965163837,
  'trackId' => 965163837,
  'artistName' => 'Paul Papadimitriou',
  'collectionName' => 'layovers ✈︎ air travel and commercial aviation',
  'trackName' => 'layovers ✈︎ air travel and commercial aviation',
  'collectionCensoredName' => 'layovers ✈︎ air travel and commercial aviation',
  'trackCensoredName' => 'layovers ✈︎ air travel and commercial aviation',
  'collectionViewUrl' => 'https://podcasts.apple.com/us/podcast/layovers-air-travel-and-commercial-aviation/id965163837?uo=4',
  'feedUrl' => 'https://feed.layovers.to/podcast',
  'trackViewUrl' => 'https://podcasts.apple.com/us/podcast/layovers-air-travel-and-commercial-aviation/id965163837?uo=4',
  'artworkUrl30' => 'https://is1-ssl.mzstatic.com/image/thumb/Podcasts123/v4/0e/78/94/0e7894f2-7f46-3cb3-7e20-0a712a1e3035/mza_5034492262492324628.jpg/30x30bb.jpg',
  'artworkUrl60' => 'https://is1-ssl.mzstatic.com/image/thumb/Podcasts123/v4/0e/78/94/0e7894f2-7f46-3cb3-7e20-0a712a1e3035/mza_5034492262492324628.jpg/60x60bb.jpg',
  'artworkUrl100' => 'https://is1-ssl.mzstatic.com/image/thumb/Podcasts123/v4/0e/78/94/0e7894f2-7f46-3cb3-7e20-0a712a1e3035/mza_5034492262492324628.jpg/100x100bb.jpg',
  'collectionPrice' => 0.0,
  'trackPrice' => 0.0,
  'trackRentalPrice' => 0,
  'collectionHdPrice' => 0,
  'trackHdPrice' => 0,
  'trackHdRentalPrice' => 0,
  'releaseDate' => '2019-12-07T17:25:00Z',
  'collectionExplicitness' => 'cleaned',
  'trackExplicitness' => 'cleaned',
  'trackCount' => 101,
  'country' => 'USA',
  'currency' => 'USD',
  'primaryGenreName' => 'Places & Travel',
  'contentAdvisoryRating' => 'Clean',
  'artworkUrl600' => 'https://is1-ssl.mzstatic.com/image/thumb/Podcasts123/v4/0e/78/94/0e7894f2-7f46-3cb3-7e20-0a712a1e3035/mza_5034492262492324628.jpg/600x600bb.jpg',
  'genreIds' => 
  array (
    0 => '1320',
    1 => '26',
    2 => '1324',
    3 => '1502',
    4 => '1504',
  ),
  'genres' => 
  array (
    0 => 'Places & Travel',
    1 => 'Podcasts',
    2 => 'Society & Culture',
    3 => 'Leisure',
    4 => 'Aviation',
  ),
)...https://itunes.apple.com/lookup?id=965163837

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