Paypal redirect works on every second attempt

Hi,
I just did setup Hikashop and now I tried for at least 4 hours to fix one litle item - but with no effort.
I have only configured paypal as payment method, however the final redirect to paypal is not working...

My test website is: test.glückskongress.de/shop
If you click there on "58 € - JETZT ONLINE BUCHEN" then the checkout process starts (no user registration).
After two steps it should redirect the user to paypal, what does't do. Not on the first attempt... If I restart the process then it works

Be careful, there is a real paypal account active - so don't finalize the payment, if its working...

I send you some screenshots.
Start: 1.JPG

Result (no paypal): 2.JPG

Then after an new start at: test.glückskongress.de/shop
going again through the process I end here, as my goal was: 3.JPG



If I delete the cookies, the two loops process starts new.

In the next post I send you my settings.

Best regards
Carsten

Now the backend settings...

The Problem is the same at FireFox and Chrome.

Hi Nicolas,
you are fast and great! That really solved the problem.
I had not expected that it is needed to add the payment view if only one payment module is activated, because there is no coice. But it has to - and now I now that!

Thank you very much
Carsten