Cant get Buy Now buttons to appear on WooCommerce SHOP template page

Hi
I’m trying to add “Buy Now” button into each of the WooCommerce products that are displayed on the SHOP page.

I’ve entered the code into the WooCommerce archive-product.php but the buttons don’t appear. Heres my code extracted from the archive-product.php template:-
<?php woocommerce_product_loop_start(); ?>
<?php woocommerce_product_subcategories(); ?>
<?php while ( have_posts() ) : the_post(); ?>
<?php wc_get_template_part( ‘content’, ‘product’ ); ?>

<?php // Quick Buy Button code added here //?>
<?php do_shortcode([wc_quick_buy]) ?>

<?php endwhile; // end of the loop. ?>

What I’m I doing wrong?

https://wordpress.org/plugins/woocommerce-quick-buy/