My latest articles are not being updated on the planet feed

The Aggregator module used for Planed Drupal is not able to parse the feed because the first line in the feed is not <?xml version="1.0" encoding="utf-8" ?>. In fact, the first lines of what returned by https://lnwebworks.com/rss-drupal-article are the following ones (including the empty lines).

<!-- THEME DEBUG -->
<!-- THEME HOOK: 'views_view_rss' -->
<!-- BEGIN OUTPUT from 'themes/custom/ln_webworks/templates/view/views-view-rss.html.twig' -->
<?xml version="1.0" encoding="utf-8" ?>

The latest article on Planet Drupal is from September 18, 2023.

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