Fatal error: Uncaught Error: Class "yii\db\Migration" not found in /var/www/html/prod/common/migrations/db/m231024_140148_add_promo_code_table.php:8 Stack trace: #0 {main} thrown in /var/www/html/prod/common/migrations/db/m231024_140148_add_promo_code_table.php on line 8