Hi,
From what I can see, you entered the id 1013 in that menu setting.
However, if I open the link to that menu item, I don't see any products:
www.grilladestorino.com/tce/site/index.p...&Itemid=1013&lang=en
So the system has nothing to filter since it doesn't display any product by default.
As I said in my previous message,
you need to enter the id of a products listing menu item which lists all of your products
. Since that's not the case, it's normal that it doesn't work.
So basically, there is a problem with the settings of that menu item with the id 1013.
Please provide a screenshot of the settings of the "products listing" tab of that menu item so that we can tell you what is the problem with its settings if you can't find out what setting is wrong there.