SuperDuper error message

[badlydrawnboy]

After using SuperDuper flawlessly for many months, I received the following error message this morning (twice) while doing my routine backup:

| 11:22:11 AM | Info | /Volumes/Lovebox/Users
| 11:23:51 AM | Info | WARNING: Caught I/O exception(5): Input/output error
| 11:23:51 AM | Info | WARNING: Source: /Volumes/Lovebox/Users/kavio/Pictures/Aperture Library.aplibrary/Home .approject/AP.Minis, lstat(): 0
| 11:23:51 AM | Info | WARNING: Target: /Volumes/Lovebox Backup 1/Users/kavio/Pictures/Aperture Library.aplibrary/Home .approject/AP.Minis, lstat(): 0
| 11:23:51 AM | Info | Attempting to copy file using copyfile().
| 11:23:51 AM | Info | Attempting to copy file using ditto.
| 11:23:53 AM | Error | SDCopy: Failed to recover from copy error for file /Volumes/Lovebox/Users/kavio/Pictures/Aperture Library.aplibrary/Home .approject/AP.Minis: Operation not supported

I don't know what to make of this. Can anyone help?

Thanks!