This publishing error is a matter of integration problem which is best resolved with re-integration.
All needed is to refresh your integration with your cloud accounting software package:
1. Head to the 'Account Settings' menu and open the 'Integration' tab.
2. Click 'Change' next to 'QuickBooks Online' and re-select QuickBooks Online again.
3. Although the error messages may still appear, you can try to publish your items now