Fatal error: Uncaught Error: Call to undefined function add_action() in /home/speciale/public_html/wp-content/plugins/thrive-quiz-builder/includes/database/class-tqb-database-manager.php:217 Stack trace: #0 {main} thrown in /home/speciale/public_html/wp-content/plugins/thrive-quiz-builder/includes/database/class-tqb-database-manager.php on line 217