Formula doesn′t lead to result page

Hi,
I tried editing a test so, that after reaching a Minimum amount of answers with the button “yes” you are directed to the result.

So for example more than 4 answers yes, leads to a specific result page.
In this case the Plugin only sums up the answers. (F.e. 5 out of 9) but doesn′t lead to the result page.
I used the Formula:
scale-test-ii-zwanghaft => 4 is linked to the result page.

Unfortunately the result is not displayed. Is there something wrong with the Formula

Thanks in Advance

The page I need help with: [log in to see the link]