Hi @Kim & Ron Ortiz
Welcome to our forum!
Which version of Outlook are you using? (File > Office Account > About Outlook). Please make sure you have upgraded your Outlook to the latest version.
Are you seeing any specific error messages?
Try these few steps to recover it:
Check the visibility settings: Make sure no filters are applied that could hide the event. Clear all active filters and check if the content reappears.
Search your calendar: Use the Outlook search bar to search for a specific keyword or event title from the lost data. Expand the search to all folders if needed.
Recover Deleted Items: Check the "Deleted Items" folder in your Outlook calendar. If your lost data is there, right-click and select "Recover" to get it back.
If the above steps still can't be recovered, please try to create a new Outlook profile.
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