New arrivals block error

New Arrivals block not shown in front page !!!!
I use last updated original alidropship plugin. With last updated da Vinci v2 themes.
Its only shown when I login to WP for update any products. When I logged out and go to my site and refresh the browser the block didn't show any products.
I update the publish date for any products to today date. Also this didn't help.

Any suggestions please.