MIP on-premise scanner completed and showing lot of errors

Hello All,

Please find below details:

I have installed 2 MIP scanners in my on-prmise environment and created 2 content scan jobs like
1-for Network shares, 1-for Shrepoint and scan completed.

In the reports I can see status as "Failed" and comments as

"Protecting empty Office files is not supported, BadInputErro
"OpenFile failed, message: 'XMPFiles: No smart file handler available to handle file'
"Failed to get metadata, Invalid MS property stream header,
"Failed to open/create root storage, not a valid compound file, Problems reading directory
"The file has been protected using non RMS technologies
 

Searched the above errors/warnings but didn't find anything.

Does anyone has any idea abut above errors. Also I didn't find anything in known errors article.
https://learn.microsoft.com/en-us/purview/deploy-scanner#1-determine-whether-files-are-included-or-excluded-for-scanning
https://learn.microsoft.com/en-us/azure/information-protection/known-issues

Any help really appreciated.
Thank you

Regards

Anand Sunka