Fatal error: Uncaught Error: Class "AppHelper" not found in /var/www/html/repo/realestate/app/Plugin/HighCharts/View/Helper/HighChartsHelper.php:14 Stack trace: #0 {main} thrown in /var/www/html/repo/realestate/app/Plugin/HighCharts/View/Helper/HighChartsHelper.php on line 14