How can I pass level 6136? I think there's an error in it.

Hello @sissyk and welcome to our friendly community.  The studio released a fix for this level at 6 pm Central European time on 9 Jan 2020.  However if you are still having a problem, can you please post the make & model and software version of what you are playing on, tell whether you used any boosters to collect the keys (like a hammer) and include your game ID,  "Find Game ID Number" so they can investigate further?

Thank you.