Updates  have  been  performed  since  the  last  FULL  RESTORE.
  Consider   verifying   your   database   for  possible  database
  corruption.

  Explanation:  Updates have been performed since  the  last  full
  RESTORE.   These updates may cause database corruption do to the
  updates conflicting with the incremental restore.

  User Action:  Immediately verify the  database  if  there  is  a
  possibility  that  the  updates made since the last FULL RESTORE
  conflict with the changes made by the incremental restore.