Fatal error: Uncaught Error: Class 'yii\db\Migration' not found in /home/abertime/new.abertime.com.ua/vendor/pheme/yii2-settings/migrations/m140618_045255_create_settings.php:11 Stack trace: #0 {main} thrown in /home/abertime/new.abertime.com.ua/vendor/pheme/yii2-settings/migrations/m140618_045255_create_settings.php on line 11