Drive Genius 4

Just bought Drive Genius 4. Think I got a bargain - $40.00 (US, I assume). However, DG4 doesn't seem to repair permissions. It says dskutil did not recognize verb "repair Permissions"; type "dskutil" for a list.
Has anyone had the same problem? Were you able to fix it?

MBPro
El Capitan 10.11.1

Thanks for your help

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