Fatal error: Uncaught Error: Class "App\Engine\LegacyHandler\LegacyHandler" not found in C:\xampp\htdocs\SuiteCRM-8.9.2\core\modules\EmailMarketing\Service\Fields\UpdateEmailTemplateSubject.php:13 Stack trace: #0 {main} thrown in C:\xampp\htdocs\SuiteCRM-8.9.2\core\modules\EmailMarketing\Service\Fields\UpdateEmailTemplateSubject.php on line 13