Unfortunately there was an error in the link to the RSS link, "Follow", for my blog. So if you clicked the "Follow" link on September 18th or 19th, I recommend that you delete the old RSS feed and register again.
What happened was that the link was not updated when I registered the mortensalomonsen.com domain, so for a day or so the link pointed to the domain name I used for setting up the site. The old RSS-link is still valid, but I am not sure for how long.