Scheduling and managing events using Outlook.com calendar
Hi, I am an independent adviser and would like to help you resolve your issue.
have you made any change to your account recently like changing password or enabling two step vitrifaction ?,try removing your outlook account from ipad and re-add it again and see if it helps to resolve your issue
Hope this may resolve your issue. Feel free to post back if you need more help. I will be glad to help you.
Regards
Himalay