Fatal error: Uncaught Error: Call to undefined function isUserLoggedIn() in /web/CSE442-542/2024-Summer/cse-442b/test(saehan,jake)/src/html/fetch_student_courses.php:25 Stack trace: #0 {main} thrown in /web/CSE442-542/2024-Summer/cse-442b/test(saehan,jake)/src/html/fetch_student_courses.php on line 25