QuickBooks Error 3371 is a common error that users face while using QuickBooks. This error usually occurs when the user is trying to open QuickBooks or restore a backup. This error can be caused by many factors such as damaged or missing files, corrupt data, or even malware. The good news is that this error can be fixed easily by following some simple steps. In this article, we will show you how to fix QuickBooks Error 3371 and get your QuickBooks running again.