How to resolve 'Calendar server error' and 'Quit Calendar' not responding on Mac?

The calendar responded with server error. Recommendations were to quit calendar, but quit calendar is will not respond.

[Re-Titled by Moderator]

MacBook Pro 15″

Posted on Mar 11, 2025 8:56 AM

Similar questions

Calendar no longer work on macOS Tahoe Hello. I just updated to macOS Tahoe and noticed that calendar no longer work with this error: "There was an unexpected error with the request (domain kEKAccountErrorDomain / error 9).". I tried closing it and reopen it a few times but it did not help. Is there a way to fix this? [Edited by Moderator]
2888 4
How do I resolve 'Server responded with an error' in Mac Calendar by re-adding email accounts? ISSUE: Mac Calendar "Server responded with an error" message Revert to server, try again, cancel. Try again may close out the window and allow me to close iCal and shut down my computer. Or, it may cause me to click 'try again' 15 times before. SPECIFIC TO MY CASE: In the list of email accounts connected to the calendar on the left sidebar, 2 of my 3 email accounts had a little tiny gray exclamation point next to them. This meant that those 2 accounts needed to be removed and re-added to the accounts page in system preferences. SIMPLE FIX: Go to System Preferences>Internet Accounts>Click the problem mail account listed on the left sidebar>Click the remove " - " icon, follow any prompts> Click the "+" to add the mail account back in>Add the account address and password>Check the little time gray exclamation point. It should be gone. Hope that helps. I think I got all the steps correctly from memory. [Re-Titled by Moderator]
800 1
Calendar server error 400 Each time I open Calendar on my MacBook Pro (MacOs 10.15.7 Catalina) there's a warning triangle under my Yahoo account. When I click on the triangle it brings up the box in the attached screenshot. What can I do to correct this please? [Edited by Moderator]
5463 6

There are no replies.

This thread has been closed by the system or the community team. You may vote for any posts you find helpful, or search the Community for additional answers.