Thanks for checking in with us, Romeo17.
Let me help you get past the error code you're getting while restoring the backup file in QuickBooks Desktop.
The error code 31197 00540 you're getting is caused by various reasons, but the most common reason are missing Windows or QuickBooks updates, data damage, computer issues, or program code that needs repairing. The Unrecoverable error can occur in numerous situations but are not limited to:
It is important to make sure that your QuickBooks Desktop is up to date in the latest release version to take advantage of updates and bug fixes. After that, follow the steps below to resolve this.
Solution 1: Identify how many users are affected:
Solution 2: Suppress your QuickBooks Desktop:
For detailed steps and information, check out this recommended article: Unrecoverable Error: General Troubleshooting Steps.
You may find these articles helpful:
For additional help, you can also reach out to our QuickBooks Desktop Support. They have additional tools to assist you in getting this resolved.
Feel free to get back to me if you need more help in restoring your file in QuickBooks Desktop. I'll be around to help.