Tree's leave behind shadows when removed.[Solved]

[Rugarus]

Screen capture - 12d6d96e7ea44cc472b62ad6555c475f - Gyazo

There was previously trees and different terrain there. When removed the shadows still remain. How can I remove the shadows?

EDIT: Solved

 

[KILLCIDE]

How did you solve it?

 

[BloodSoul]

How did you solve it?

I believe his problem was solved by recalculating the map shadows.

 

[Rugarus]

I believe his problem was solved by recalculating the map shadows.

Correct ^ File > Calculate shadows and save map.