QBWC1085: QuickBooks was unable to write to the log file. QuickBooks will open without writing to log file

This happens when there's a damaged or missing QWCLOG.TXT file. You may get one of these errors:

- QBWC1085: There was a problem with the log file. QuickBooks Web Connector will continue without the log file.

- Exception TypeError: Unknown name

What you can do?

If your company file isn’t connected to a third-party application:

1. Sign in as the Windows admin.

2. Open Windows File Explorer and go to this folder: C:\ProgramData\Microsoft\Windows\Start Menu\Programs\Startup.

3. Right-click QuickBooks Web Connector, then select Delete.

4. Restart your computer and open QuickBooks.

If your company file is connected to a third-party application using Web Connector:

1. Exit QuickBooks and Web Connector.

2. Open Windows File Explorer and go to this folder: C:\ProgramData\Intuit\QBWebConnector\log.

3. Rename the QWCLOG.TXT to QWCLOGOLD.TXT.

4. Reopen Web Connector, then restart your computer.

5. Open QuickBooks and sign in to your third-party application.

Note: If you still get this error, reach out to Intuit Support.

Reference: https://quickbooks.intuit.com/learn-support/en-us/set-up-payments/fix-common-web-connector-errors/00/203305