Hi @Yu-Jeong Seo ,
Welcome to our forum!
Please log in to web mail to check if the recurring meeting persists. If it is still not shown, please try to recover it:
1.Check if it is in the Deleted items folder.
2.If it is not in the Deleted items folder, click Deleted items folder > click Recover Deleted Items from Server. If the recurring meeting is shown, select it and click Restore Selected Items to recover it.
If you can find the deleted recurring meeting via the above methods, right-click it > click Move > click Other Folder > select Calendar and click OK.
Then the recurring meeting will be displayed in your calendar. You can cancel it and it will disappear in other attendees' calendar.
If you cannot recover the deleted recurring meeting in Deleted Items folder, i'm afraid that the recurring meeting cannot be canceled in your side.
Hope to help you!
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