To fix QuickBooks Error Code 6190 and 816, try these quick steps:
1. Ensure all users log out.
2. Copy the company file to the local computer.
3. Rename the .TLG and .ND files.
4. Move the company file back to the original location.
5. Open QuickBooks and try again.
https://www.axpertaccounting.c....om/quickbooks-error-