Fatal error: Uncaught Error: Class "Illuminate\Database\Migrations\Migration" not found in /home/demohost/hospital.demohost.in/database/migrations/2023_12_21_121555_add_custom_field_to_patients_table.php:7 Stack trace: #0 {main} thrown in /home/demohost/hospital.demohost.in/database/migrations/2023_12_21_121555_add_custom_field_to_patients_table.php on line 7