About my Playthrough. Just passed the main story part and saved Hikmet city from the Coudetat.

Im at the final part of the Dangerous Bets quest Were i beat the Champion at the arena and Petrus says we should go talk to the cardinal... The quest marker for the cardinal brings me to a house just outside New serene's Governor building...
When i go up to the door with the questmarker it just says the door is blocked.

Now i am stuck with Petrus in my group and cannot finish any other companion quests.

Any fix besides loosing hours of playtime. So stupid you cant abandon quests.