Weird lighting on my wall

Development Rendering
1

I have a issue with a part of a wall being lit, and I deleted the light source from outside. Was that a mistake and how do i fix this. I’ve built lighting a ton of times with no change.

this post giving me an error uploading the image so I’ll just post a link. http://prntscr.com/7c428f

This is a ceiling and a wall intersecting in a hallway with no lights… how???

2

well i get that sometimes too i done wat u ahve dont so wat i do now is i put about 2 walls i put one two sided shadow and the one behind it normal that fixed it for me. And use a wall with a very thin thickness for the two sided shadow. =/ hope it helps