Fatal error: Uncaught Error: Class "Illuminate\Database\Migrations\Migration" not found in /home/uconline/public_html/ead.uconline.mx/database/migrations/2025_06_07_093712_add_begins_at_col_to_exam_assignments.php:7 Stack trace: #0 {main} thrown in /home/uconline/public_html/ead.uconline.mx/database/migrations/2025_06_07_093712_add_begins_at_col_to_exam_assignments.php on line 7