hi I took a time out a couple of months ago and I had striking the tree extreme yet to do but I come back and the quest has gone?

I went to try and pick it up agen nothing there I go to gridania to the nps and I see that I must have the quest as I see the red icon thing over the npc's head so I desided to go to the entrance agen nothing there to unlock the extreme so I try and do it on hardmode agen I do it and still wont unlock it for me