Fatal error: Uncaught Error: Call to undefined function getCourseById() in /home4/alfadgim/public_html/cert4upro.com/pages/course-detail.php:10 Stack trace: #0 /home4/alfadgim/public_html/cert4upro.com/index.php(79): include_once() #1 {main} thrown in /home4/alfadgim/public_html/cert4upro.com/pages/course-detail.php on line 10