Fatal error: Uncaught Error: Class "yii\base\Widget" not found in /home/apolo/public_html/sgdpr/vendor/miloschuman/yii2-highcharts-widget/src/Highcharts.php:52 Stack trace: #0 {main} thrown in /home/apolo/public_html/sgdpr/vendor/miloschuman/yii2-highcharts-widget/src/Highcharts.php on line 52