Using Apple Calendar on MacOS 27 and have google accounts setup. I am running into this error message on and off constantly all day long. "Your calendar events couldn't be refreshed."
A simple "refresh" of the calendars fixes it but it's quite annoying now.
I have tried the typical resolutions including removing my google accounts and then adding them back. Turning them on/off. I can't figure out what is causing these error message. It happens on multiple google accounts.