Try to open an event that is saved in the calendar, but error message box pops up. Message say:
Item does not exist. It may have already been deleted by another user.
Web Parts Maintenance Page: If you have permission, you can use this page to temporarily close Web Parts or remove personal settings. For more information, contact your site administrator.
Troubleshoot issues with Microsoft Sharepoint Foundation.
Correlation ID: ef87574e-3047-4e92-9f02-e0b0bbdcf4cc
I did click on the Web Pats Maintenace Page link and tried deleting from there, but received same message:
Item does not exist. It may have been deleted by another user. (c841e787-805b-4d97-ad79-46e617c5ea14
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