“Everafter Falls”. Can’t enter the ruins? Because The Cursed Sacred Tree Rune mission has started .

After beating William. Blacksmith’s quest started and the ruin got locked i can’t access no more.?? I have to do the mission first and give the resources to Dawn Moonflower,Ironsphere, Phathomsphere. But i dont have ironshard and phantomshard in my inventory all used up. If i cant access the dungeon how am i supposed to get the resources.! Am i locked out?? Am i cooked??? Please any guidance will do.