%SystemRoot% is not valid for the path, it needs to be a local path to the target server of the template. C:\Windows\SYSVOL would be a valid path to audit the SYSVOL folder.
More details cab be found in the Change Auditor for Windows File Servers guide:
https://support.quest.com/technical-documents/change-auditor-for-windows-file-servers/user-guide/4#TOPIC-1563817