Fatal error: Uncaught Error: Class "App\Engine\LegacyHandler\LegacyHandler" not found in D:\htdocs\SuiteCRM\tmp\package\upgrade\SuiteCRM-8.10.1-extracted\core\modules\EmailTemplates\LegacyHandler\CalculateTemplateInjectorVariables.php:37 Stack trace: #0 {main} thrown in D:\htdocs\SuiteCRM\tmp\package\upgrade\SuiteCRM-8.10.1-extracted\core\modules\EmailTemplates\LegacyHandler\CalculateTemplateInjectorVariables.php on line 37