WP Catalogue adding custom Taxonomy

Hi!

I need your help. So I am trying to customize WP Catalogue that will have a link(Taxonomy) on the bottom of each product that will link to the Merchant info. Once I click on merchant “URL” I should be able to see a list of all the product for the current merchant. So in a sense it should be working as a simple category listing.

you can see the demo site here: http://bekov.net/DEMO/wpcproduct/ball-chair/

So I added this code:

/**
 * Custom taxonomies
 *
 */

function add_custom_taxonomies() {
	// Add new "Locations" taxonomy to Posts
	register_taxonomy('merchant', 'wpcproduct', array(
		// Hierarchical taxonomy (like categories)
		'hierarchical' => true,
		// This array of options controls the labels displayed in the WordPress Admin UI
		'labels' => array(
			'name' => _x( 'Merchant Information', 'taxonomy general name' ),
			'singular_name' => _x( 'Merchant Info', 'taxonomy singular name' ),
			'search_items' =>  __( 'Search Merchant' ),
			'all_items' => __( 'All Merchant' ),
			'parent_item' => __( 'Parent Merchant' ),
			'parent_item_colon' => __( 'Parent Merchant:' ),
			'edit_item' => __( 'Edit Merchant' ),
			'update_item' => __( 'Update Merchant' ),
			'add_new_item' => __( 'Add New Merchant' ),
			'new_item_name' => __( 'New Merchant Name' ),
			'menu_name' => __( '[Merchants]' ),
		),
		// Control the slugs used for this taxonomy
		'rewrite' => array(
			'slug' => 'merchant', // This controls the base slug that will display before each term
			'with_front' => false, // Don't display the category base before "/locations/"
			'hierarchical' => true // This will allow URL's like "/locations/boston/cambridge/"
		),
	));
}
add_action( 'init', 'add_custom_taxonomies', 0 );

to the functions.php in the theme files.

And I added this code:

<h4>Merchant Info</h4>

<!--MERCHANT INFO START-->

<?php echo get_the_term_list( $post->ID, 'merchant', '', ', ', '</p>' );?>

<!--MERCHANT INFO END -->

to the wp-catalogue/themefiles/single-wpcproduct.php

What did I do wrong