Heh, oh yes THAT error.
My advice would be to go into your GryfenCoin folder and delete everything but the wallet, the config file and the mining client. Also delete all the hidden win files in \appdata\gryfencrypto\gryfencoin - then start it(the wallet) back up and it will sync. If not please let me know @
zigbs.zigbs@gmail.com and I can get back to you in real time and solve this.