Fatal error: Uncaught Error: Class 'Illuminate\Database\Migrations\Migration' not found in /home/edmedu/www/mig.edmclass.com/front.edmclass.com/database/migrations/board/2025_03_21_155811_create_group_study_boards.php:7 Stack trace: #0 {main} thrown in /home/edmedu/www/mig.edmclass.com/front.edmclass.com/database/migrations/board/2025_03_21_155811_create_group_study_boards.php on line 7