VamTam Help Desk

You can enable the zoom-on-hover feature of the product's gallery following the steps below:

Step 1:

Deactivate the "Disable Image Link" option in the Product Images widget (skip this step if you're running the latest theme version)

Step 2:

Get a child theme from https://vamtam.com/child-themes/ 

Step 3:

Put the code below in its functions.php file:

add_action( 'after_setup_theme', function() {
    add_theme_support( 'wc-product-gallery-zoom' );
    add_theme_support( 'wc-product-gallery-lightbox' );
    add_theme_support( 'wc-product-gallery-slider' );
} );

You can also check this guide: 

Vamtam Elementor Builder: Why use a Child theme?