QuickBooks error 3371 is generally displayed when you try to open QuickBooks and it gives the following error "Could not initialize license properties. [Error 3371, Status Code -11118] QuickBooks could not load the license data. This may be caused by missing or damaged files.". Status codes may vary depending up the nature of the cause. This is due to the corrupt entitlementdatastore.ecml file due to which license information could not be validated.
Check the screenshot of this error by clicking the link below.
In most of the cases you will be able to fix this error by simply creating a new entitlement file within the installation directory of your QuickBooks software.
For complete solution and steps, please click here.