If I can attach a picture you'll see my actual error message below in the picture. On my MacBook (macOS Sierra 10.12.1) using the latest RingCentral app (8.3.5) when I go into the Settings and pick Contacts, there are two options: View Google Contacts, and View Mac Contacts.
My local Mac contacts have been synced to Google for years so in the RingCentral app I tried to turn on the option to "View Mac Contacts" but I get an error saying:
Contacts application is temporarily unavailable. Please try again.
Try again is not an option at that point. All I can do is close the window. What does that even mean? How can my local contacts application not be available?
I have tried this with the Contacts app running, and not running. I have rebooted several times and made sure nothing except RingCentral was running. All with the same result.
Any idea what's going on here?