QuickBooks error 3371 usually occurs while you attempt to re-configure your system or when you try to activate QuickBooks. This error may also pop up in case of damaged company files. This error is often associated with a damaged QB system file, namely 'entitlementDataStore.ECML'. To know about this error, ensure that you go through this article till the very end. Our expert team provides you with the most reliable support and ensures that all your queries and issues get resolved in a timely manner. This article enumerates the various causes and the necessary troubleshooting measures for fixing the QuickBooks Error 3371 Status Code 11118.