Fatal error: Uncaught Error: Class "Illuminate\Database\Migrations\Migration" not found in /home/uconline/public_html/ead.uconline.mx/database/migrations/2025_06_20_090127_change_letter_enum_in_academic_groups_table.php:8 Stack trace: #0 {main} thrown in /home/uconline/public_html/ead.uconline.mx/database/migrations/2025_06_20_090127_change_letter_enum_in_academic_groups_table.php on line 8