1xINTERNET posts display on Planet Drupal

I cannot at the moment access https://www.1xinternet.de/en/drupal-planet/feed. Firefox keeps trying to access the URL, but it still does not show any content after five minutes (although it does not return any timeout error).

I can only access https://www.drupal.org/aggregator/sources/1937 → and notice that:

• There are four articles
• For the more recent two, title and article summary use the same text

On https://www.1xinternet.de/en/drupal-planet/feed there are three articles, but one has been published more than three months and three weeks ago.
I removed all the articles from Planet Drupal and made the Aggregator module retrieves the articles from https://www.1xinternet.de/en/drupal-planet/feed. As expected, there are now two articles with a summary that is different from the title.

I guess the issue could have been caused by the different structure of the feed.

I agree that our feed items are displayed correctly now. Thanks apaderno!

Automatically closed - issue fixed for 2 weeks with no activity.