Hello there, I've got a huge issue going on with my company. We have a main account on our Exchange that shares its three calendars (General, Seminars, and Surgeries) with all the other users in the company. Two days ago, my employees started saying that they were receiving a "The set of folders cannot be opened error," and now, all calendars besides the main calendar have gone missing from the main account, both on Outlook and online.
Are there any backups stores of our calendars? How can we access these? We are devastated to have this information lost, and our employees would not have deleted the calendar.
Please help, this is driving my business to a halt as we do not know when any of our appointments are.
Thank you,
Sam