Fatal error: Uncaught Error: Class 'Yii' not found in /var/www/html/ng-crm/yiiapp/backend/views/pdf/windowcard_template_ficha.php:2 Stack trace: #0 {main} thrown in /var/www/html/ng-crm/yiiapp/backend/views/pdf/windowcard_template_ficha.php on line 2