This is a public webpage (Access = Public) with some links
This link is wrong in the Article Text:Datafeeds (old category). Sef plus will fix that on each page load, ensuring the links points to the right new category. The broken link checker can find and replace the category permanently.
Most extension run in the background or are only visible in the administrator. Like to try this yourself? Contact me for a download link to a Akeeba backup of this website. With kickstart you can create your own copy in minutes.