Info for the unmaintained Redacted T6 client.
UPDATE: A fix has been released. https://reactiongaming.us/community/threads/redacted-windows-10-creators-edition-fix.1003/
To fix, navigate to the file mentioned, right click and select properties and the select the security tab. Click Advanced button settings and change the owner of the file to your user account. Different operating systems may have different methods to change ownership of files.