Deadly Map Boss Bug

In the Map "Derelict Mansion" where you would fight a deadly map boss to have a chance to drop the new lineague support gems, the boss room is not opening.
It does not even shot the text "Door" above the doors in the mension, but you can see the two bosses moving in the cort yard.

Is there a fix to this or is the map now done for?


https://imgur.com/a/TZdsoTj

#fixed
In a room on the first floor, there was a smal manuscript. When you clicked on it it opened the arena.