Fatal error: Uncaught Error: Call to undefined function sanitize_text_field() in /home3/mercatri/public_html/wp-content/plugins/tutor-pro/addons/tutor-report/views/pages/courses/graph/date_range.php:8 Stack trace: #0 {main} thrown in /home3/mercatri/public_html/wp-content/plugins/tutor-pro/addons/tutor-report/views/pages/courses/graph/date_range.php on line 8