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-cart.php:37 Stack trace: #0 /home/adaptyo3/public_html/wp-content/plugins/QUARENTINE/woocommerce-subscriptions/classes/class-wc-subscriptions-cart.php(1605): WC_Subscriptions_Cart::init() #1 {main} thrown in /home/adaptyo3/public_html/wp-content/plugins/QUARENTINE/woocommerce-subscriptions/classes/class-wc-subscriptions-cart.php on line 37