[Evolution] calendar appt issue

[Anonymous Japhering <japhering gmail com>]

Evolution:   3.40.2 (flatpak gitdc3787d) 

Kernel: 5.4.0-72-generic x86_64 bits: 64 

Desktop: MATE 1.22.2

Distro: Linux Mint 19.3 Tricia

Google G-Suite Calendar

Using Calendly.com  to schedule appointments.  Client rescheduled through Calendly and I see this message after

I click the accept button to take the change.

Unable to send item to calendar “mike@*************.com : mike@*************.com”. Cannot receive calendar objects: Unsupported method

Any thoughts,  it used to work ....