In order to enter the wolf den you need to take the quest Cure for lycantropy from the night witch
or not that is full moon,, the one that I say is the one of the werewolves of the swamp
According to the devlog:
Bernard (Req: Bottom Logan path, Misty Abyss unlocked, WW story finished):
Logan (Req: Normal Logan path, Payback event finished, Misty Abyss unlocked):
Did you do all of that?
I needed to enter the store, after that everything developed faster