Return of Reckoning

I've done all five Beastlord Bosses ,and then picked the pvp killing quests, but one disappeared from my quest log (beastlord hunt :witch hunters) Now i got 4/5 tokens and i cannot pick the quest again and, buy the Pocket :-\ i've waited the weekly reset,but nothing happened. Please help me,i really need BL set 5/5 so bad! Waaagh!!!

your Zurgoth <3