Fatal error: Uncaught Error: Class 'yii\db\ActiveRecord' not found in /opt/lampp/htdocs/farmacia.apirest/modules/apiv1/models/saleProducts/ProductStock.php:10 Stack trace: #0 {main} thrown in /opt/lampp/htdocs/farmacia.apirest/modules/apiv1/models/saleProducts/ProductStock.php on line 10