Fatal error: Uncaught Error: Using $this when not in object context in /home/tandomain/projects.codersinsight.co.tz/hrsystem/vendor/2amigos/yii2-file-upload-widget/src/views/form.php:5 Stack trace: #0 {main} thrown in /home/tandomain/projects.codersinsight.co.tz/hrsystem/vendor/2amigos/yii2-file-upload-widget/src/views/form.php on line 5