After a recent MS office update, I began getting an error upon opening MS Outlook. There's a yellow exclamation point in a small popup that reads, "Could not read the calendar." It also appears if I switch to another Outlook function (like the calendar, with which, incidentally, there is no problem) and then back to mail. I have to click "OK" in order to proceed. I've checked to make sure I have all current updates both for Office and Windows (10). I've also rebooted several times, did an Office repair (both short and long), but the problem persists. I've also checked the MS forums, and while the problem is known, no one has posted a solution. Some have suggested it is an inability to communicate with the iCloud calendar, but I do not use that and have no idea how to connect to it.






Using:
Dell XPS 8930 computer
Windows 10 Professional, v 20H2, OS build 19042.867
Microsoft Office 365

Thanks for any help with this. I don't know if it's relevant, but this problem appeared about the same time as I began having difficulty sending e-mail from this account (that problem has been solved).