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Fatal error: Uncaught mysqli_sql_exception: Unknown column 'course_status' in 'where clause' in /home/afriextr/public_html/include/db.php:79 Stack trace: #0 /home/afriextr/public_html/include/db.php(79): mysqli->prepare('SELECT * FROM c...') #1 /home/afriextr/public_html/courses/category_list.php(50): CoursesDB->get_courses_by_category('Research and Da...') #2 /home/afriextr/public_html/courses/index.php(55): include('/home/afriextr/...') #3 {main} thrown in /home/afriextr/public_html/include/db.php on line 79