List of events is displayed

What causes this issue?

You want to deactivate the display of the list of events. This only
makes sense if an event is displayed in the detail screen otherwise the
screen would remain empty.

System Response

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

How to fix this error?

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.