Fatal error: Uncaught Error: Class "Illuminate\Database\Migrations\Migration" not found in /home/indgiants/indvlog.com/indvlog_backend/database/migrations/tenant/2021_02_28_230543_add_grade_to_students.php:7 Stack trace: #0 {main} thrown in /home/indgiants/indvlog.com/indvlog_backend/database/migrations/tenant/2021_02_28_230543_add_grade_to_students.php on line 7