I would like very much to recover a file I mistakenly changed yesterday before the backup gets overridden. The problem is that when I open Cloudberry Backup, it says it needs full disk access. It gives me a button to open System Preferences, and tells me to drag the icon to the full disk access list. IT IS ALREADY THERE. But CBB just presents me with a "close application" button.

Backups seem to be running fine; I occasionally get a warning that I have slept my Mac, thus preventing backups from completing. That's reasonable as I only get it at what appears to be appropriate times. So I'm confident that my files are getting backed up. But how can I recover them?