Fatal error: Uncaught Error: Call to undefined function add_filter() in /home/pac84520/public_html/wp-content/plugins/woocommerce-ajax-filters/includes/currency-exchange.php:5 Stack trace: #0 /home/pac84520/public_html/wp-content/plugins/woocommerce-ajax-filters/includes/currency-exchange.php(24): BeRocket_AAPF_currency_exchange->__construct() #1 {main} thrown in /home/pac84520/public_html/wp-content/plugins/woocommerce-ajax-filters/includes/currency-exchange.php on line 5