Zoho Mail Desktop Windows 10 Not Loading

Zoho Mail Desktop Windows 10 Not Loading

When trying to use the Destop application I get a notification that "Precaching unsuccessful, loading normally". Then after a few minutes it get a notification that an update failed to load. "app update failed - Something went wrong while updating the app. Please try again later (Details: Error: New version 1.0.2 is not signed by the appl...)

Web browser works fine.