Spoilers coming up since it is quest related.
I just started the quest and got to the point where I speak with the wood elf for the forest poison potion (after being teleported by the golden stag). I stopped playing mid-conversation and now when I log in I am by the Blue Oak tree (before being teleported away) and have no path available to leave. The northern path is blocked by tree limbs, see photo. Let me know if you have any ideas, thanks!