Fatal error: Uncaught Error: Call to undefined function add_filter() in /home/america2/public_html/wp-content/plugins/advanced-product-labels-for-woocommerce/includes/free.php:6 Stack trace: #0 /home/america2/public_html/wp-content/plugins/advanced-product-labels-for-woocommerce/includes/free.php(70): BeRocket_products_label_free->__construct() #1 {main} thrown in /home/america2/public_html/wp-content/plugins/advanced-product-labels-for-woocommerce/includes/free.php on line 6