Hi there, @CarCzar.

I'm here to help and ensure to isolate this problem, so you keep your QuickBooks up and running. Let’s update your QuickBooks Desktop for Mac to improve the program's functionality and fix known issues.

In-product update:

1. From the QuickBooks▼ drop-down menu, select Check for QuickBooks Updates.
2. If a newer version is available, select Install Update.
3. When prompted, select Install and Relaunch.
4. When the update is complete, QuickBooks for Mac automatically opens.

Manual update:

1. Close your QuickBooks.
2. From the Finder menu, select Go. 
3. Choose Applications.
4. Select the QuickBooks icon and drag/move it to the Trash. 
5. Then, reinstall the latest version
6. Go to QuickBooks Product Updates.
7. Select [Change] to choose your QuickBooks Desktop version.
8. Choose Download to download the installer file to your computer.
9. Double-click the downloaded .dmg file.
10. Drag the QuickBooks Desktop icon to the Applications folder to install.

Then, you can restore your company file in QuickBooks.

You can check this link for the details steps on how to reinstall the QuickBooks: Install and set up QuickBooks Mac Desktop.

I'm always here to help if you have any other questions. Have a good one.