Fatal error: Uncaught Error: Class "App\Engine\LegacyHandler\LegacyHandler" not found in C:\xampp\htdocs\SuiteCRM-8.9.2\core\modules\EmailMarketing\Statistics\EmailMarketingDiagnostics.php:48 Stack trace: #0 {main} thrown in C:\xampp\htdocs\SuiteCRM-8.9.2\core\modules\EmailMarketing\Statistics\EmailMarketingDiagnostics.php on line 48