Fatal error: Uncaught Error: Class 'Illuminate\Database\Migrations\Migration' not found in /mnt/volume_lon1_01/backend/admin/database/migrations/2020_07_22_174718_create_categories_table.php:7 Stack trace: #0 {main} thrown in /mnt/volume_lon1_01/backend/admin/database/migrations/2020_07_22_174718_create_categories_table.php on line 7