Fatal error: Uncaught Error: Class "Illuminate\Database\Migrations\Migration" not found in /home/vigilancehosting/control.vigilancehosting.net/database/migrations/2018_02_10_151150_remove_unique_index_on_external_id_column.php:7 Stack trace: #0 {main} thrown in /home/vigilancehosting/control.vigilancehosting.net/database/migrations/2018_02_10_151150_remove_unique_index_on_external_id_column.php on line 7