It seems you have encountered a bug of getting stuck, we understand your situation and it's unfortunate that it had happened in your playthrough. The solution I can think of is that you pause by pressing ESC and continue to see if the doorway at the bottom right/left is working again.
If you are having difficulty traversing the area please use the guide made by Xvyce at the comments.
Still, we appreciate the comment for playing the game and giving feedback!