Fatal error: Uncaught Error: Class 'yii\db\Migration' not found in /var/www/www-root/data/www/com7.uz/console/migrations/m200926_095413_add_columns_to_product_variation_option_value_table.php:8 Stack trace: #0 {main} thrown in /var/www/www-root/data/www/com7.uz/console/migrations/m200926_095413_add_columns_to_product_variation_option_value_table.php on line 8