Error: The RSS file isn’t working

We tried to get the RSS file for this podcast - http://gothamcentral.libsyn.com/rss - but it wouldn’t load for us.

array (
  'wrapperType' => 'track',
  'kind' => 'podcast',
  'collectionId' => 951490102,
  'trackId' => 951490102,
  'artistName' => 'Drew Hood, Ross Phillips, Ryan Crabb, Nick Miller',
  'collectionName' => 'The Gotham Central Podcast',
  'trackName' => 'The Gotham Central Podcast',
  'collectionCensoredName' => 'The Gotham Central Podcast',
  'trackCensoredName' => 'The Gotham Central Podcast',
  'collectionViewUrl' => 'https://podcasts.apple.com/us/podcast/the-gotham-central-podcast/id951490102?uo=4',
  'feedUrl' => 'http://gothamcentral.libsyn.com/rss',
  'trackViewUrl' => 'https://podcasts.apple.com/us/podcast/the-gotham-central-podcast/id951490102?uo=4',
  'artworkUrl30' => 'https://is5-ssl.mzstatic.com/image/thumb/Podcasts113/v4/dd/ec/63/ddec6390-2ad8-277b-1214-b1214d33f704/mza_4938790271766635621.jpg/30x30bb.jpg',
  'artworkUrl60' => 'https://is5-ssl.mzstatic.com/image/thumb/Podcasts113/v4/dd/ec/63/ddec6390-2ad8-277b-1214-b1214d33f704/mza_4938790271766635621.jpg/60x60bb.jpg',
  'artworkUrl100' => 'https://is5-ssl.mzstatic.com/image/thumb/Podcasts113/v4/dd/ec/63/ddec6390-2ad8-277b-1214-b1214d33f704/mza_4938790271766635621.jpg/100x100bb.jpg',
  'collectionPrice' => 0.0,
  'trackPrice' => 0.0,
  'trackRentalPrice' => 0,
  'collectionHdPrice' => 0,
  'trackHdPrice' => 0,
  'trackHdRentalPrice' => 0,
  'releaseDate' => '2019-02-11T19:15:00Z',
  'collectionExplicitness' => 'cleaned',
  'trackExplicitness' => 'cleaned',
  'trackCount' => 117,
  'country' => 'USA',
  'currency' => 'USD',
  'primaryGenreName' => 'TV & Film',
  'contentAdvisoryRating' => 'Clean',
  'artworkUrl600' => 'https://is5-ssl.mzstatic.com/image/thumb/Podcasts113/v4/dd/ec/63/ddec6390-2ad8-277b-1214-b1214d33f704/mza_4938790271766635621.jpg/600x600bb.jpg',
  'genreIds' => 
  array (
    0 => '1309',
    1 => '26',
    2 => '1502',
  ),
  'genres' => 
  array (
    0 => 'TV & Film',
    1 => 'Podcasts',
    2 => 'Leisure',
  ),
)...https://itunes.apple.com/lookup?id=951490102

Here’s our front page.