Hello there, @ackattack.

I appreciate you performing the steps shared by my colleague to fix the message prompt.

Since the error keeps coming up preventing you from working on the company file, I recommend uninstalling and reinstalling QuickBooks Desktop for Mac. Doing so fixes damaged functionalities on the program.

Prepare the license and product numbers before performing the following steps: 

1. Close the program.
2. On your computer, go to the Finder menu and select Go.
3. Choose Applications.
4. Click the QuickBooks icon and drag it to the Trash.

Once done, remove the QuickBooks PLIST files to revert all preferences back to its default settings. Let me show you how:

1. From the Finder menu, select Go.
2. Choose Library while holding down the Option key.
3. Look for PLIST files on the Preferences folder that contains com.intuit.QuickBooks20xx.
4. Drag it to the Trash and empty the bin.

Here’s an article for reference: Reinstall QuickBooks for Mac using clean install.

Now let’s download your QuickBooks Desktop for Mac version. You can use the CD installer if the software was purchased from a retailer.

Make sure to close all running applications to start the installation process. Double-click the downloaded file from the website or insert the CD. 

For the detailed instructions, check out this article: Install and set up QuickBooks Mac Desktop.

Right after, open QuickBooks and restore the file. You should be able to work on it without any issues.

Leave a comment if you have any other concerns. I’m always here to help. Have a good one!