Fatal error: Uncaught Error: Call to undefined function TutorPro\Ecommerce\add_action() in /home/risei/public_html/wp-content/plugins/tutor-pro/ecommerce/Init.php:26 Stack trace: #0 /home/risei/public_html/wp-content/plugins/tutor-pro/ecommerce/Init.php(66): TutorPro\Ecommerce\Init->__construct() #1 {main} thrown in /home/risei/public_html/wp-content/plugins/tutor-pro/ecommerce/Init.php on line 26