Fatal error: Uncaught Error: Call to undefined function add_action() in /home/oxygenco/prod/wordpress/wp-content/plugins/Ultimate_VC_Addons/lib/nps-survey/classes/nps-survey-script.php:29 Stack trace: #0 /home/oxygenco/prod/wordpress/wp-content/plugins/Ultimate_VC_Addons/lib/nps-survey/classes/nps-survey-script.php(40): Nps_Survey->__construct() #1 /home/oxygenco/prod/wordpress/wp-content/plugins/Ultimate_VC_Addons/lib/nps-survey/classes/nps-survey-script.php(508): Nps_Survey::get_instance() #2 {main} thrown in /home/oxygenco/prod/wordpress/wp-content/plugins/Ultimate_VC_Addons/lib/nps-survey/classes/nps-survey-script.php on line 29