Fatal error: Uncaught Error: Class 'Illuminate\Mail\Mailable' not found in /home/wwiwil/apps/iwill-laravel/app/Mail/TeacherLessonCanceledByStudent.php:10
Stack trace:
#0 {main}
thrown in /home/wwiwil/apps/iwill-laravel/app/Mail/TeacherLessonCanceledByStudent.php on line 10