I am finding this problem when I am clicking on the next question button. The page simply moves on to a white screen. This is what I get http://www.stressdiaries.com/?wpss-routing=results - not sure what it is, but does not move on to next question.
The form size is also larger than it should be, and fills outside of the grey box - looks unprofessional.
See it here: http://www.stressdiaries.com/stress-test/