Fatal error: Uncaught Error: Class 'Illuminate\Database\Migrations\Migration' not found in /home/kingelearn/public_html/database/migrations/2020_09_25_143442_add_id_to_course_download.php:7 Stack trace: #0 {main} thrown in /home/kingelearn/public_html/database/migrations/2020_09_25_143442_add_id_to_course_download.php on line 7