Fatal error: Uncaught Error: Class "App\Engine\LegacyHandler\LegacyHandler" not found in D:\htdocs\SuiteCRM\tmp\package\upgrade\SuiteCRM-8.9.1-extracted\core\backend\Emails\LegacyHandler\SendEmailHandler.php:39 Stack trace: #0 {main} thrown in D:\htdocs\SuiteCRM\tmp\package\upgrade\SuiteCRM-8.9.1-extracted\core\backend\Emails\LegacyHandler\SendEmailHandler.php on line 39