Make full darkness and use only lights (point light etc)

Hi, im making horor game in building, or residence, no windows to allow see player out, then i can remove skybox etc, but when i try remove skybox, set ambient light to black and intensity to 0, then i still see something like sun in my room going under walls Screenshot by Lightshot and wall behind me is still with light, and when i use light in room, then this object not casting any light source. How can i get rid of this “sun” and make full dark in my game and allow to use only lights to allow see in room? Thanks

fixed, i found one more light source in map, after removing i get what i want.