Hi all, I'm using the next configuration but no entries are retrieved

sensor:
  - platform: feedparser
    name: elcomercio
    feed_url: 'https://www.elcomercio.es/rss/2.0/?section=gijon'
    show_topn: 20
    scan_interval:
      hours: 1

It does work with the example provided so I guess it should be related to the xml format or the response somehow.