Restore from Backup - MacOS


Dear Sirs,
I fat finger deleted a category in my Strip Database. No Problem I have a Strip Backup to restore from. Problem it revert to the specified backup. It comes up in the default original database and when I attempt to revert to the desired backup I get the following message:

“Are you sure you want to revert the current database to the selected database backup file? Your current database file will be backed up, first.”

I select the “Revert” button and I get the following message:

" STRIP filename" couldn’t be copied because you don’t have permission to access “default.strip”. To view or change permissions, select the item in the Finder and choose File > Get Info.

How do I use my Backup?