Once you've archived a template, you have the option as an admin to restore it back into an active state for use in a review cycle.
Navigate to Admin > Performance > Reviews > Templates .
Select the Archived tab.
To the right of the desired template, select the ellipsis (...).
From the dropdown, select Restore.
A confirmation message will appear—select Restore to confirm.
After restoring, the template will be considered active and can be assigned to a review cycle.