Fatal error: Uncaught Error: Class 'yii\web\Controller' not found in /home/wittyly/public_html/staging/hr-witty/controllers/request/RequestOutOfOfficeController.php:27 Stack trace: #0 {main} thrown in /home/wittyly/public_html/staging/hr-witty/controllers/request/RequestOutOfOfficeController.php on line 27