Hello, seasidefuel.
Thank you for trying out the steps provided by my colleagues and for letting us know the results.
Since the error is persisting after trying all of the troubleshooting methods, I recommend upgrading to the latest version of the Desktop software. I saw that you mentioned you only use a handful of offline features, but upgrading would ensure the error is removed and you're account features and functionality will be up-to-date.
If you would like to attempt the workarounds that have also been shared, that may be an idea but ultimately your call. The following article provides the details on upgrading to the latest release of QuickBooks Desktop: https://quickbooks.intuit.com/learn-support/en-us/update-products/update-quickbooks-desktop-to-the-l...
If you have any other question please let me know.
