3. Remove all dirs and files from your Gpkr directory (%APPDATA%/Gpkr for Win and ~/.gpkr/ for Linux), except wallet.dat and .conf files (wallet.dat, gpkr.conf, masternodes.conf)
5. Start the wallet again wait for sync and check your wallet current block - it must be as in Explorer (https://explorer.gold-poker.com/) If you will have any questions - PM me or anyone from GPKR Team. We will help you ASAP.