Can't find any info to get me through this. I have the paypal in sandbox mode. I add several items to cart then click on show cart. I get a "page not found" 404 error.
The path is:
https://www.adlerdrone.com/shop/scout-x4/cart
Joomla 3.3 Virtuemart 3.0.2
You don't have a valid ssl certificate for the site, so you should deselect "Enable SSL for sensitive areas (recommended)" in Configuration/Shop
And it is better if you don't enable SEF until you have set up the store and completed any debugging. That makes it easier to identify where problems are.