Fatal error: Uncaught Error: Class "Illuminate\Database\Seeder" not found in C:\laragon\www\silkroad-laravel-deadly_vietnam\database\seeders\ItemMallItemCategoriesSeeder.php:9 Stack trace: #0 {main} thrown in C:\laragon\www\silkroad-laravel-deadly_vietnam\database\seeders\ItemMallItemCategoriesSeeder.php on line 9