after-image journals cannot be backed up due to unrecoverable
  data loss

  Explanation:  An attempt was made to back up an after-image
  journal after loss of AIJ data has occurred.  One or more of the
  following events may have occurred:  1.  An inaccessible journal
  was deleted.  2.  A modified journal was deleted while
  journalling was disabled.  3.  A journal was overwritten.  4.
  Journal switch-over failed.

  User Action:  A full database backup must be immediately
  performed to make the database recoverable again.