Fatal error: Uncaught Error: Class "Basic" not found in D:\htdocs\SuiteCRM\tmp\package\upgrade\SuiteCRM-8.9.1-backup\modules\Alerts\Alert.php:42 Stack trace: #0 {main} thrown in D:\htdocs\SuiteCRM\tmp\package\upgrade\SuiteCRM-8.9.1-backup\modules\Alerts\Alert.php on line 42