Why is Sony a57 camera's EVF showing everything in Blue color?

Why is Sony a57 camera's EVF showing everything in Blue color?

My camera was lying in the bag unused for the past few months. Now when I took it out to shoot some pictures, I was shocked to see a strange issue with its EVF. Whenever I try to see through my Sony a57 Electronic Viewfinder, everything is displayed in Bluish color and the EVF seems to flicker a lot.