Cannot Update 4.8.1 Sp1 To 4.8.2

it will not install shows a error msg unable to prepare restore script

Did you check the permissions of the path leading to the restore file as the error message most likely indicated?

Im still stuck on this this is what it says can someone help get this achieved

Upgrade 4.8.1.SP1 - 4.8.2

New version: 4.8.2 Release date: Aug 15, 2018 File size: 8,175 Kb
CS-Cart 4.8.2 brings the following changes and improvements:
Backups can now be made via the command line.
The old category selection mechanism (category tree) is now available on the product editing page alongside the new one.
Search results are no longer dropped, and tabs are no longer switched automatically in the add-on list after an action is performed on an add-on.
The identifiers of pages, blog posts, and features are now displayed in the Administration panel.
To see the full list of changes, please check the changelog.
Show Package Contents
Validation issue
Validator "Restore" returned fail status
Unable to prepare restore script.

Please take a look