Fatal error: Uncaught Error: Call to undefined function add_filter() in /home/pac84520/public_html/wp-content/plugins/woocommerce-ajax-filters/includes/paid/woocommerce-variation-functions.php:5 Stack trace: #0 /home/pac84520/public_html/wp-content/plugins/woocommerce-ajax-filters/includes/paid/woocommerce-variation-functions.php(133): BeRocket_AAPF_compat_woocommerce_variation_functions->__construct() #1 {main} thrown in /home/pac84520/public_html/wp-content/plugins/woocommerce-ajax-filters/includes/paid/woocommerce-variation-functions.php on line 5