What is wrong here?
Can't complete challenge as I get the errror "The Follow up on Escalated Case" not found

What is wrong here?
Can't complete challenge as I get the errror "The Follow up on Escalated Case" not found

Hi guys/gals,

Do you have any idea on how to obtain the Cloak of Adventure sweatshirt after completing 5 badges on trailheads?

Source: http://go.pardot.com/l/27572/2016-01-06/4wy4tn?utm_campaign=newyear-trailhead-sweatshirt

I haven't received any email address or notification about the completion after I had received 5 new badges on my profile. 

The sweetshirt looks really cool and I want to get it :D  Ty
 

 Hi,

Whenever I'm trying to verify step under trailhead projects, everytime it's showing me below error. Previously it was working fine. No idea what's wrong with it now. 
Error: "Your DE Org session has timed out. Please login to your DE Org to continue."
 

Kindly suggest ways to rectify this issue.