I'm quite sure this is a trivial problem but can't find a way to fix it.
I've defined the shop page in settings and uploaded my products.
However, the shop page says "No product found". http://officinarenovatio.it/shop/
The single product page displays correctly: http://officinarenovatio.it/product/prodotto-prova/
Switching to Twenty eleven/Twenty twelve doesn't solve it.
Many thanks for helping out