Error: The RSS file isn’t working

We tried to get the RSS file for this podcast - http://feedpress.me/promopodcast - but it wouldn’t load for us.

array (
  'wrapperType' => 'track',
  'kind' => 'podcast',
  'artistId' => 882877014,
  'collectionId' => 579954969,
  'trackId' => 579954969,
  'artistName' => 'Emilcar',
  'collectionName' => 'Promopodcast',
  'trackName' => 'Promopodcast',
  'collectionCensoredName' => 'Promopodcast',
  'trackCensoredName' => 'Promopodcast',
  'artistViewUrl' => 'https://podcasts.apple.com/us/artist/emilcar-fm/882877014?uo=4',
  'collectionViewUrl' => 'https://podcasts.apple.com/us/podcast/promopodcast/id579954969?uo=4',
  'feedUrl' => 'http://feedpress.me/promopodcast',
  'trackViewUrl' => 'https://podcasts.apple.com/us/podcast/promopodcast/id579954969?uo=4',
  'artworkUrl30' => 'https://is1-ssl.mzstatic.com/image/thumb/Podcasts113/v4/bd/46/7b/bd467b48-83fc-b2c5-a7e6-17a59887f3e5/mza_5210925800703462674.png/30x30bb.jpg',
  'artworkUrl60' => 'https://is1-ssl.mzstatic.com/image/thumb/Podcasts113/v4/bd/46/7b/bd467b48-83fc-b2c5-a7e6-17a59887f3e5/mza_5210925800703462674.png/60x60bb.jpg',
  'artworkUrl100' => 'https://is1-ssl.mzstatic.com/image/thumb/Podcasts113/v4/bd/46/7b/bd467b48-83fc-b2c5-a7e6-17a59887f3e5/mza_5210925800703462674.png/100x100bb.jpg',
  'collectionPrice' => 0.0,
  'trackPrice' => 0.0,
  'trackRentalPrice' => 0,
  'collectionHdPrice' => 0,
  'trackHdPrice' => 0,
  'trackHdRentalPrice' => 0,
  'releaseDate' => '2019-09-18T04:30:00Z',
  'collectionExplicitness' => 'cleaned',
  'trackExplicitness' => 'cleaned',
  'trackCount' => 144,
  'country' => 'USA',
  'currency' => 'USD',
  'primaryGenreName' => 'Technology',
  'contentAdvisoryRating' => 'Clean',
  'artworkUrl600' => 'https://is1-ssl.mzstatic.com/image/thumb/Podcasts113/v4/bd/46/7b/bd467b48-83fc-b2c5-a7e6-17a59887f3e5/mza_5210925800703462674.png/600x600bb.jpg',
  'genreIds' => 
  array (
    0 => '1318',
    1 => '26',
    2 => '1489',
    3 => '1528',
  ),
  'genres' => 
  array (
    0 => 'Technology',
    1 => 'Podcasts',
    2 => 'News',
    3 => 'Tech News',
  ),
)...https://itunes.apple.com/lookup?id=579954969

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