During phase 1, fsck(1M) found duplicate blocks or bad blocks associated with the file or directory specified after FILE=whose inode number appears after I= (with other information).
To remove this file or directory, answer yes. If you end up removing more than a few files in this manner, data loss will result, so it might be preferable to restore the filesystem from backup tapes.
For more information on checking filesystems, see the section on checking filesystem integrity in the System Administration Guide, Volume I.