Restoring deleted add-to-cart button

Site URL: https://www.agiaskepi.org/shop-by-category/sundried-blueberries?category=Dried%20Fruit

Hi, 

I need hep restoring our shop's cart button back to its initial setting. As the site served only as a catalogue, I deleted it over a year ago using the code below.  But now we need the functionality.  How can I restore it to default?  Any help much appreciated.

Squarespace - Version 7.0– Supply family (Supply template)

<style>

 .product-price,

 .product-quantity-select,

 .sqs-add-to-cart-button-wrapper {

   display:none;

  }

 </style>