Hi there, Probably NotHappy.
I appreciate you for providing the exact error message and the period this issue occurred.
Performing the data damage troubleshooting can help resolve common errors in QuickBooks. I’ll be right here to guide through the steps.
First, run the Rebuild Data Utility to resolve data corruption issues found by the Verify Data tool. Here’s how:
If the issue persists, I recommend following the resolution steps in the Fix Company File in use, Feature in use, Another user doing XXX, or Transaction in use errors article.
Make sure to follow them in order to ensure you can carry out any tasks in QuickBooks seamlessly.
This information should help move past the issue.
Keep me posted how these steps work for you. I’ll be right here if you need more help.