Audivarana doesnt recognize my Bifrost DAC

I upgraded my Schitt Bifrost DAC with a unison USB DAC, Audivarana does not recognize it ! Help ! I am using a MAC mini 10.11.6 harware is a mid 2010, The MAc sees the USB DAC under usb 2. I have the latest version on 3.5 Audivarna

Hello @66mgb, Can you send me a copy of the “Debug Info”? You can get it in Audirvana Settings>General>Debug Info

Note: By clicking on the Debug Info Audirvana button automatically copies all its content, all you have to do is paste it in response to this message

Fixed problem by upgrading the Mac Mini to High Sierra. Audivarana now sees the Bifrost Unison dac all is well!