Error: The RSS file isn’t working

We tried to get the RSS file for this podcast - https://podcasts.nac-cna.ca/NACOcast - but it wouldn’t load for us.

array (
  'wrapperType' => 'track',
  'kind' => 'podcast',
  'artistId' => 980753804,
  'collectionId' => 127086953,
  'trackId' => 127086953,
  'artistName' => 'National Arts Centre Orchestra',
  'collectionName' => 'NACOcast: Classical music podcast with Sean Rice',
  'trackName' => 'NACOcast: Classical music podcast with Sean Rice',
  'collectionCensoredName' => 'NACOcast: Classical music podcast with Sean Rice',
  'trackCensoredName' => 'NACOcast: Classical music podcast with Sean Rice',
  'artistViewUrl' => 'https://podcasts.apple.com/us/artist/canadas-national-arts-centre/980753804?uo=4',
  'collectionViewUrl' => 'https://podcasts.apple.com/us/podcast/nacocast-classical-music-podcast-with-sean-rice/id127086953?uo=4',
  'feedUrl' => 'https://podcasts.nac-cna.ca/NACOcast',
  'trackViewUrl' => 'https://podcasts.apple.com/us/podcast/nacocast-classical-music-podcast-with-sean-rice/id127086953?uo=4',
  'artworkUrl30' => 'https://is4-ssl.mzstatic.com/image/thumb/Podcasts113/v4/d4/f7/75/d4f775b8-6281-b4ed-461f-e926f803747e/mza_9014836855378110696.png/30x30bb.jpg',
  'artworkUrl60' => 'https://is4-ssl.mzstatic.com/image/thumb/Podcasts113/v4/d4/f7/75/d4f775b8-6281-b4ed-461f-e926f803747e/mza_9014836855378110696.png/60x60bb.jpg',
  'artworkUrl100' => 'https://is4-ssl.mzstatic.com/image/thumb/Podcasts113/v4/d4/f7/75/d4f775b8-6281-b4ed-461f-e926f803747e/mza_9014836855378110696.png/100x100bb.jpg',
  'collectionPrice' => 0.0,
  'trackPrice' => 0.0,
  'trackRentalPrice' => 0,
  'collectionHdPrice' => 0,
  'trackHdPrice' => 0,
  'trackHdRentalPrice' => 0,
  'releaseDate' => '2019-08-02T18:01:00Z',
  'collectionExplicitness' => 'cleaned',
  'trackExplicitness' => 'cleaned',
  'trackCount' => 160,
  'country' => 'USA',
  'currency' => 'USD',
  'primaryGenreName' => 'Performing Arts',
  'contentAdvisoryRating' => 'Clean',
  'artworkUrl600' => 'https://is4-ssl.mzstatic.com/image/thumb/Podcasts113/v4/d4/f7/75/d4f775b8-6281-b4ed-461f-e926f803747e/mza_9014836855378110696.png/600x600bb.jpg',
  'genreIds' => 
  array (
    0 => '1405',
    1 => '26',
    2 => '1301',
  ),
  'genres' => 
  array (
    0 => 'Performing Arts',
    1 => 'Podcasts',
    2 => 'Arts',
  ),
)...https://itunes.apple.com/lookup?id=127086953

Here’s our front page.