http://justdubsanime.net/toriko-episode-51 this episode wasn't working the second to the last episode.
It shouldn't actually work at all. Episode 51 was never dubbed as it was a crossover episode between Toriko and One Piece which Funimation decided not to dub. We don't add subs on this site so it's perfectly okay to skip over that episode as it has nothing to do with the story line.