Undead's Staff lv33 mission bug

lately i,ve lved to 33 on my Jin and recived a new quest for the new level...One mission called..(title says)....u need 15 staffs which u get from killing darkmages in Ellia continent...It is a 100% drop till..Well when I got 12/15 i couldn't get anymore.Even after farming like 10times. My friend also has the same mission and thus, same problem....Please fix.. I really need the 127k exp ☆☆☆

Go up instead of right and you'll get them.

thx.. ill try it