Problem with shadows gives shadow to whole plane

I am following the beginner tutorial for the roll a ball game and its the first video and he sets a directional light I have no problems until he changes the shadow type. on his screen the ball gets a shadow and the plane stay white on my screen when I change the shadow type it darkens everything including the whole plane I checked everything and it’s exactly what he did

Its is most probably that you have the directional like facing upwards slightly , try rotating it.