Fatal error: Uncaught Error: Call to undefined function add_action() in /home/successforkids/public_html/wp-content/plugins/conditional-shipping-for-woocommerce/includes/class-conditional-shipping-updater.php:338 Stack trace: #0 {main} thrown in /home/successforkids/public_html/wp-content/plugins/conditional-shipping-for-woocommerce/includes/class-conditional-shipping-updater.php on line 338