I’ve seen that changing template products you all see, with your template you see nothing. Try going to “Promozioni” and then from the menu on the left select a category, see there is no product anymore ??
My site is full of products, and I first sold a lot, please correct the problem otherwise I’ll ask for the refund immediately because it’s a big deal to me!
Don’t be angry because if the page I created without issues (it mean it display good), but your homepage not display, it mean that when you did the edit the homepage you already add something or do something broke your homepage. Event the server cache also can be a reason. Can not blame on us if it not theme issues (because other Homepage still work).
After i deactivate all the plugin you installed, your home page show again. It mean some of the plugin you have installed conflict with it. Also the memory not enough to run too much plugin like that, so increase your memory also.