In this situation, are you allowed to drive straight ahead through the crossroads?

Why?

At the entrance to the street straight ahead, you can see the B-2 no entry sign, a red circle with a horizontal white bar. It prohibits entry from your direction, so you cannot continue straight through this junction.

B-2 „zakaz wjazdu”, § 17 ust. 1 rozporządzenia w sprawie znaków i sygnałów drogowych