looks like you will need to re-sync, please follow these steps..
1) Close your wallet
2) locate your application support folders (In these locations)
Windows:
C:\Users\<
Mac:
/Users/<
Linux:
/home/<
3) Make a backup of the wallet.dat file, store it somewhere safe
4) delete all the other files except wallet.dat and keep any rubies.conf files you may have created
5) Start the wallet and wait for it to re-sync, which might take about 20 mins
Compare you results with the block explorer as that is correct to all the nodes.
If you still experience problems please report back on here or PM me