The snapshot area for live area <str> (FILID entry <num>)  is  a
  live area.

  Explanation:  The FILID entry for  each  live  area  contains  a
  pointer to the FILID entry for the snapshot area associated with
  the live area.  The snapshot area associated with the named live
  area is not a snapshot area.

  User Action:  Restore and recover the database from backup.