DAR Scan Errors

I am running DAR scans on specific folders on several shares.  I am getting an error "Failed to read //share/folder; error: null".  I do not have access to look at the folder.  I am assuming the folder exists since I did not get a "Failed to list folder -- The system cannot find the path specified."  And that the account has access since I did not get an "Access Denied" error.  Is anyone familiar with the "Failed to read //share/folder; error: null". 

Thanks