No reference for vertical partition <num> found
  in primary segment in dbkey <num>:<num>:<num>.

  Explanation:  The primary partition has an array of  dbkeys  for
  every  vertical  partition  of the record.  Each dbkey is tagged
  with the number of the  partition  it  represents.   This  error
  indicates that no dbkeys are tagged with the specified partition
  number..

  User Action:  Restore and recover the page of the primary  dbkey
  from backup.