Error Installing System Optimiser

Whenever I try and install the SysOptimiser, I get this error:

I have tried many of the solutions from other questions on this forum, the main one of which seems to be deleting files from the LaunchDaemons and PriviledgedHelperTools folders, however when I check these folders there are no files from Audirvana in them. Can someone help?

I get the same error message. Did anyone figure it out?