Essence of the Artist Act 7

I was playing with a friend, we were killing Maligaro inside of his map, I died at the same time than Maligaro.
We went out, could go to the Chamber of Sins 2, and we finished the act at the end.
When we got to act8, we went back to act 7 to finish quests, but for me the quest 'Essence of the Artist' is still at the stats 'Travel to Maligaro's Sanctum'.
- I cant' get back the map from Crypt 2 (I opened the box, nothing dropped)
- Inside Chamber of Sins 1, there is no clicakble Map Device, so I can't check if the map is still inside it
- Silk is dead because I finished the Act

So I can't finish the quest and get the passive tree point.

Please help...

Y a pas de point de passif pour cette quête, tu le vois quand tu tapes la commande /passives.
Si t'as eu accès à la chamber of sins 2, t'as plus besoin de la quête.