jcraft Hi
I just checked in: J2Store component in backend >> Catalog >> Products but there is no product of Sofas & Sleepers which you're settings to show products in the menu item settings:
If you add another category such as Bed Rooms, for example, you will see products on frontend.
P/s: when you experience any issue with 3rd party extension like this, you can make a test with Cassiopeia template - the standard template of Joomla and see how it works there first. It will help to find out where the issue comes from. If it works with Cassiopeia template, then the issue may come from the override of our JA Elicyon template. In case, it doesn't work with Cassiopeia template either, something wrong with J2Store itself 🙂