Fatal error: Uncaught Error: Class "yii\db\Migration" not found in /var/www/html/prod/common/migrations/db/m250101_000001_add_slot_time_step_locked_field.php:8 Stack trace: #0 {main} thrown in /var/www/html/prod/common/migrations/db/m250101_000001_add_slot_time_step_locked_field.php on line 8