Updates  have  been  performed  since  the  last  FULL  RESTORE.
  Aborting  the  INCREMENTAL  RESTORE to prevent possible database
  corruption.

  Explanation:  For BATCH mode incremental restores where the user
  is  not  prompted to allow him to abort the restore operation if
  updates have been performed since  the  last  FULL  RESTORE  the
  restore  is  aborted to avoid possible database corruption do to
  the updates conflicting with the incremental restore.

  User Action:  Do the incremental restore  using  the  /NOCONFIRM
  qualifier or do not do the incremental restore to avoid possible
  database corruption or restore the database from the  last  full
  restore,  immediately  do  the incremental restore, and redo any
  database changes that are not in the incremental restore.