Fatal error: Uncaught Error: Call to undefined function add_action() in /home/adaptyo3/public_html/wp-content/plugins/QUARENTINE/woocommerce-subscriptions/classes/class-wc-subscriptions-email.php:23 Stack trace: #0 /home/adaptyo3/public_html/wp-content/plugins/QUARENTINE/woocommerce-subscriptions/classes/class-wc-subscriptions-email.php(200): WC_Subscriptions_Email::init() #1 {main} thrown in /home/adaptyo3/public_html/wp-content/plugins/QUARENTINE/woocommerce-subscriptions/classes/class-wc-subscriptions-email.php on line 23