Fatal error: Uncaught Error: Class "App\Data\LegacyHandler\ListDataHandler" not found in C:\xampp\htdocs\SuiteCRM-8.9.2\core\backend\Data\LegacyHandler\PresetDataHandlers\AlertsDataHandler.php:35 Stack trace: #0 {main} thrown in C:\xampp\htdocs\SuiteCRM-8.9.2\core\backend\Data\LegacyHandler\PresetDataHandlers\AlertsDataHandler.php on line 35