Fatal error: Uncaught Error: Class 'Illuminate\Database\Migrations\Migration' not found in /var/www/dev/public/database/migrations/2025/2025_07_31_100_TablesProductosVariantes.php:13 Stack trace: #0 {main} thrown in /var/www/dev/public/database/migrations/2025/2025_07_31_100_TablesProductosVariantes.php on line 13