Running Monterey. Been having this issue for a few days. I have tried deleted cache files, restarting my computer, disabling calendar etc. Can someone assist?
MacBook Air 13″, macOS 12.1
More people are having this issue: https://discussions.apple.com/thread/253479333
Thanks. I had to escalate this to Apple Support.
Hi there Kyle89ZA,
It sounds like you're receiving an alert regarding Calendar on your Mac.
Do you experience this with multiple accounts?
If you're not sure, try disabling Calendar for all of your accounts, restart, then enable them individually to see if the issue occurs.
Also, are you noticing any issues with Calendar, or only receiving the alert?
Finally, start your Mac in safe mode, and check for the issue there: How to use safe mode on your Mac
We hope this helps.
The server responded: “403” to operation CalDAVAccountRefreshQueueableOperation."
