Can you give me more information?
What is your wallet version?
Is your wallet synced?
Did you try a "repairwallet" in the console from the wallet?

** Edit ** On your picture I see that the wallet is synced, but it doesn't seem to been opened for a long time. The last time it received a mining transaction seems to be july 2014.

** EDIT **  I can see all the pictures now. Please try this:
Click on Help --> Debug window --> select console --> type "repairwallet"  without the " "  and push enter on your computer