Errors of Report Executed Log

Hi all experts, have a good days.

Image above is my audit log table. May I know that it is possible to show the actor name in the actor column instead of Scheduled Report ?

Image above also show the errors of actor unauthenticated. May I know that why the audit log able to take the actor host which is IP address but not able to take the actor name as the image show above.

Thanks in advance.