Blocked URLs by robots.txt file ?

hi guys
i have blogger blog which is rank very well but now 10 to 12days i saw my traffic is going down day by day without any reason i did not change anything even my backlinks is very strong and high quality
so i visit webmaster tools and i saw 97 urls black by robots.txt you can check it here
View attachment 120313
View attachment 120313
is that is reason down my traffic ?
because i have total 108 post in my blog before my ranking is very well my traffic going down from 19 aug 2013…
Blocked URLs by robots.txt file ?

See original post by fadhi123