Framework folder dDocAuthor propogate

Hi,

We have migrated folders from Folders_g to Framework folders.

All the folders having a dDocAuthor value weblogic. When the end user check in content by selecting the option, 'New Content Item' from folder browse and Click check in after filling the metadata value, it throws an error .

Content item <undefined> was not successfully checked in. You have insufficient privileges to assign the content item to user 'weblogic'

End users are non admin users , so they are not able to change theAuthor( dDocAuthor) value from the check in screen.

I have tried to propagate(folder only) an empty value for dDocAuthor. But it says null value cannot be propagated for dDocAuthor.