Fatal error: Uncaught Error: Class 'yii\base\Model' not found in /mnt/www/law_firm/crm/vendor/yiisoft/yii2-debug/src/models/search/User.php:20 Stack trace: #0 {main} thrown in /mnt/www/law_firm/crm/vendor/yiisoft/yii2-debug/src/models/search/User.php on line 20