Cannot get ringcentral app to make calls - error RCMobile

Ringcentral retired the desktop phone app, and now when I go to make calls a error message that reads “

RingCentral Phone Not Installed - You weren't able to make calls because RingCentral Phone is not installed. Install RingCentral Phone first.” pops up and suggest that I download the RC desktop app that no longer exists. I deleted all files related to Ringcentral on the desktop…