Fatal error: Uncaught Error: Class 'yii\base\Widget' not found in /home/wittyly/public_html/staging/hr-witty/vendor/lajax/yii2-language-picker/widgets/LanguagePicker.php:49 Stack trace: #0 {main} thrown in /home/wittyly/public_html/staging/hr-witty/vendor/lajax/yii2-language-picker/widgets/LanguagePicker.php on line 49