I don't know how to open the door. I didn't understand how the middle room works. There was a time when the character disappeared. It would be good to put more images of the game.
You have to do the puzzle of the levers. Click E to interact with it. Each lever lights 2 lamps and if you try to light a lamp that is already on, it will turn off. On the page have a tip in case it's too difficult.
