What you can do is:

1) Close the wallet.
2) Delete everything within Appdata/Casinocoin, but not wallet.dat + casinocoin.conf (make a copy of wallet.dat also, save it elsewhere). Let the original wallet.dat stay in the Appdata/Casinocoin directory!
3) Restart the wallet

Then you reload the blockchain. It has stuck only on your computer I guess, so after reloading the blockchain it would be ok again, I think.