So many errors in unity3d related to Render and Color.

I am getting so many errors related to render and color in unity 3d 5.6.1, I even tried reinstalling unity3d but it did not work for me, here are errors

When yesterday I opened my Unity3d 5.6.1 then it showed a weird thing. I am getting following error:

Don`t forget to see the images [i even tried to change the setting in light setting explore

but it is whole white you can see in the image]

I tried everything this happened suddenly, it works fine before.
Any solution, comment is appreciated here.
Thanks!