AIJ backup completed after skipping previously backed up journal
  sequence <num>

  Explanation:  An attempt was made  to  back  up  an  after-image
  journal  that  does  not  have  the  next chronological sequence
  number.  This condition normally  occurs  when  a  "by-sequence"
  operation  is  done  out  of order.  For instance, sequence 6 is
  backed up, then sequences 5 through 7 are attempted.

  User Action:  In the above example,  the  backup  was  completed
  when  the  previously backed up AIJ sequence  6 was encountered.
  The journal containing sequence  5 was fully and  safely  backed
  up.   Restart the backup with the next journal requiring back up
  (in the above example, sequence  7).