Are you allowed to turn right in this situation?

Why?

A B-2 no-entry sign stands at the entrance to the road on the right, so you must not turn into it. The green light does not cancel this restriction. Traffic lights override signs governing priority, but they do not override a no-entry sign.

znak B-2, § 17 ust. 1 rozporządzenia w sprawie znaków i sygnałów drogowych; art. 5 ust. 3 Prawa o ruchu drogowym