hash bucket not found at dbkey <num>:<num>:<num>

  Explanation:  A hash bucket was expected at the given dbkey, but
  was  not  found.  The pointer to the hash bucket from the system
  record is probably corrupt.

  User Action:  Ascertain if the  index  is  corrupt  by  manually
  verifying  related system records and hash buckets after dumping
  pages of the database.  If the index is corrupt, rebuild it.