Fatal error: Uncaught Error: Class "yii\widgets\ActiveForm" not found in /home/tandomain/projects.codersinsight.co.tz/hrsystem/frontend/theme/widgets/ActiveForm.php:21 Stack trace: #0 {main} thrown in /home/tandomain/projects.codersinsight.co.tz/hrsystem/frontend/theme/widgets/ActiveForm.php on line 21