Post Process Cel Shader Dynamic Shadows are different color

Hello there, I’ve been working on a cel shader post process material for a day or two, and I’m close to nailing it. However, I did realize a problem. My post process shader has dark shadows, which is what I wanted it to be but shadows cast from dynamic shadow/direct lighting are bluish, just like this;

How can I solve this problem, what should I do?
Also, here is the material blueprint for cel shader for help; Cel Shading Material posted by anonymous | blueprintUE | PasteBin For Unreal Engine