Invalid link (or redirect) to the original article when reading news from Feedly

For quite some time now, each time I've opened a link to the original article posted on planet.jboss.org to which I subscribed on Feedly, I've arrived to an error page with an URL such as:

http://planet.jboss.org/error/post_error.seam;jsessionid=1DC5DC0A0C6325EE0C0599994D454540?cid=578237&utm_source=feedly

I added the following source to my Feedly:

http://planet.jboss.org/xml/all?type=atom 

link was found on

http://planet.jboss.org/feed/all