Thanks for joining in on the thread, troyt.
This error usually occurs if the company file copy was created on a version lower than the one you're currently using. For example, your client uses QuickBooks Desktop 2018 while you'reusing the 2019 or higher version. You might find this link helpful regarding the company file compatibility: Company file compatibility with QuickBooks Desktop when upgrading.
Here are also another reference when dealing with company files:
Keep us posted if you need additional assistance in restoring the company file.
