My Background color of blog change automatically.Don't no how?

Friends,my blog background color change automatically from black to white.I don't know
what problem arise.Please give any suggestion or solution to get rid of this problem.My website(blog)
is www.ldspoonandcutlery.com
My applied theme is http://wpstream-bloggertemplateplace.blogspot.com/
It changes today.i don't know how and even i can't open the page of setting.

 

Maybe your themes use dynamic update. So the themes automatic changing some part of it.

 

Your background looks black to me :S

 

Actually i didnt see any difference.

 

anybody can help him!!

 

Hey Guys thanks for all answer,i run audit in
my page and background changes from white
to black again.
Thanks