Fatal error: Uncaught Error: Class "Symfony\Component\HttpKernel\Kernel" not found in D:\htdocs\SuiteCRM\tmp\package\upgrade\SuiteCRM-8.9.1-extracted\core\backend\Kernel.php:46 Stack trace: #0 {main} thrown in D:\htdocs\SuiteCRM\tmp\package\upgrade\SuiteCRM-8.9.1-extracted\core\backend\Kernel.php on line 46