I just upgraded to high sierra so I could use the Flic on an old MacBook Pro.
Half way through the connection a system pop up appears asking if I want to continue to connect to the bluetooth device. When that happens the Flic Mac app stops and says "we encountered an unknown error. please try again or contact support if the problem persists."
I click on the system pop up that I'd like to continue to connect but by then the flic app has already stopped. I can't find a way to get past it.