I can help you find your backup file, @SIinc.

When your computer is disconnected from the path where the QuickBooks file is located or your QuickBooks file has been deleted from your computer, this issue usually happens.

Let's go to your server computer and perform a wildcard search for all company files. Make sure to include the asterisk (*) before the extension type to ensure the search works correctly. Here are the following:

• *.qbw (Working Files)
• *.qbb (Back-Up Files)
• *.qba (Accountants Copy Files)
• *.qbx (Accountants Transfer Files)
• *.qby (Accountants Change Files

Take note of the file location once you find it. Also, I recommend you rename your company file. This way, you can easily locate it when opening your company file moving forward.

Please feel free to read these handy articles for your reference:
- Company file is missing or cannot be found

- What to do if you can't open your company file in QuickBooks Desktop

Let me know if there's anything I can help with further. Have a great weekend!