Fatal error: Uncaught Error: Class "Illuminate\Database\Migrations\Migration" not found in /home/uconline/public_html/pruebas.uconline.mx/database/migrations/2023_08_04_130353_add_level_to_academic_schedules.php:7 Stack trace: #0 {main} thrown in /home/uconline/public_html/pruebas.uconline.mx/database/migrations/2023_08_04_130353_add_level_to_academic_schedules.php on line 7