Hi Mateusz,
I visited this place half a year ago. The bakery was still looking good but was closed. It was not clear If this closing is temporary or permanent.

I therefore made the opening_hours=closed. It dod not look disused or vacant. 

This kind of closening is happening very often nowadqys in Germany as the economy is getting more unstable. I assume bankrupcy or similar. It was impossible for me to survey any more information.

Greetings,

Redd