Fatal error: Uncaught Error: Call to undefined function add_query_arg() in /home/speciale/public_html/wp-content/plugins/thrive-quiz-builder/includes/admin/views/templates/reporting/questions-open-question.phtml:17 Stack trace: #0 {main} thrown in /home/speciale/public_html/wp-content/plugins/thrive-quiz-builder/includes/admin/views/templates/reporting/questions-open-question.phtml on line 17