"add to cart" and "detail" buttons missing using woocommerce

Hello to all , i hope i’ll find a solution for my problems in this land of WordPress guru .

i’m preparing a magazine online using the theme MIKMAG , all is okay but there is a big problem , using the shortcode :

[product_category category=”cuorematto-gioielli” per_page=”12″ columns=”4″ orderby=”date” order=”desc”]

i can’t see the link to the details page of displayed item and the button “add to cart ”

Anyone know how to fix this ( i think small ) trouble ?

Thank’s in advance to all !