Floor unaffected by directional light

Edit: Fixed it by setting the Shader from Mobile/Diffuse to "Standard (specular setup)". The floor is now affected correctly by light.

Hi!

I have the problem that my floor is not properly affected my the spot light I use as a flashlight.

The floor is either evenly lit when I direct the flashlight towards it, or completely black. The flashlight cone is not visible at all on the floor, but on buildings it is.

I've got the buildings and floor from the same asset pack and was hoping they would work out of the box. I have never worked in Unity before and have a deadline coming up.

Images: https://imgur.com/a/liuucX3