Fatal error: Uncaught Error: Call to a member function getId() on null in /home/enect/html/member/lesson/index.php:39 Stack trace: #0 /home/enect/html/member/lesson/index.php(28): setLessonList() #1 /home/enect/html/member/lesson/index.php(11): init() #2 {main} thrown in /home/enect/html/member/lesson/index.php on line 39