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