Bug or error in quest "Traitor's Passage" that prevents me from accessing the endgame of Poe 2.

I have the quest "Traitor's Passage" stuck and I can't move forward in any way. I've done the indicated area and killed the boss of the mission like 10 times or more, I've been in a group with a friend who was starting the same mission and he hasn't moved forward either... Because of this error I can't play the endgame of the game because the map device tells me that I have to finish all the missions of the campaign to be able to open a map. This is very frustrating and hopeless, so I ask that someone please help me contact GGG so they know about this error and can fix it.