Relabeling Portfolio Items Broke with New Update

Hi,

On my site, I had been using a code snippet in my child theme’s functions.php file to change the label of “Portfolio Items” in the backend to “Stallions”. After the update to 3.5.2 and WP 4.5, that code broke the site. I am copying my code below that worked before the update. Can you please let me know what code I should use to make the label change on the new theme version? Thanks!

function unregister_taxonomy(){
global $wp_taxonomies;
$taxonomy = ‘portfolio_entries’;
if ( taxonomy_exists( $taxonomy))
unset( $wp_taxonomies[$taxonomy]);
}
add_action( ‘init’, ‘unregister_taxonomy’, 30);

// portfolio args
add_action( ‘init’, ‘init_reg_portfolio’, 50 );
function init_reg_portfolio() {
add_filter(‘avf_portfolio_cpt_args’, ‘avf_portfolio_cpt_args_mod’, 50, 1);

$tax_args = array(
“hierarchical” => true,
“label” => “Stallion Categories”,
“singular_label” => “Stallion Category”,
“rewrite” => array(‘slug’=>_x($permalinks[‘portfolio_entries_taxonomy_base’],’URL slug’,’avia_framework’), ‘with_front’=>true),
“query_var” => true
);

$avia_config[‘custom_taxonomy’][‘portfolio’][‘portfolio_entries’][‘args’] = $tax_args;

register_taxonomy(“portfolio_entries”, array(“portfolio”), $tax_args);
}

add_action( ‘after_setup_theme’, ‘init_reg_portfolio’ );

function avf_portfolio_cpt_args_mod($args) {
$labels = array(
‘name’ => _x(‘Stallions’, ‘post type general name’,’avia_framework’),
‘singular_name’ => _x(‘Stallion’, ‘post type singular name’,’avia_framework’),
‘add_new’ => _x(‘Add New’, ‘portfolio’,’avia_framework’),
‘add_new_item’ => __(‘Add New Stallion’,’avia_framework’),
‘edit_item’ => __(‘Edit Stallion’,’avia_framework’),
‘new_item’ => __(‘New Stallion Entry’,’avia_framework’),
‘view_item’ => __(‘View Stallion Entry’,’avia_framework’),
‘search_items’ => __(‘Search Stallion Entries’,’avia_framework’),
‘not_found’ => __(‘No Stallion Entries found’,’avia_framework’),
‘not_found_in_trash’ => __(‘No Stallion Entries found in Trash’,’avia_framework’),
‘parent_item_colon’ => ”
);

$args[‘labels’] = $labels;
return $args;
}