Fatal error: Uncaught Error: Call to undefined function add_filter() in /home/regeneremoda/public_html/wp-content/plugins/woocommerce-ajax-filters/addons/custom_postmeta/postmeta.php:5 Stack trace: #0 /home/regeneremoda/public_html/wp-content/plugins/woocommerce-ajax-filters/addons/custom_postmeta/postmeta.php(557): BeRocket_aapf_add_postmeta_filters->__construct() #1 {main} thrown in /home/regeneremoda/public_html/wp-content/plugins/woocommerce-ajax-filters/addons/custom_postmeta/postmeta.php on line 5