How to get Calendar Details

Hi,

We had migrated User Mailbox and Shared Mailbox from 2010 Exchange to O365 and facing an issue with one of the Shared Calander, when changes are done to the existing invite its is not updating for the recipients, Is there a way I can delete all the existing invite and recreate it with the attendees using PS. When new invites are sent its is getting updated. 

Thanks & regards

Anand