Fatal error: Uncaught Error: Class 'yii\widgets\Menu' not found in /home/wittyly/public_html/staging/hr-witty/vendor/kartik-v/yii2-widget-affix/Affix.php:46 Stack trace: #0 {main} thrown in /home/wittyly/public_html/staging/hr-witty/vendor/kartik-v/yii2-widget-affix/Affix.php on line 46