Hi,
After I encrypted my wallet mining not work...
Maybe I should unlock it for mining? How to do that?
yes, wallet needs to be unlocked for mining, except if you directly mine to a specific address using miningprivkey=X in zillioncoin.conf
To unlock your wallet you have to open Debug-window and type:
walletpassphrase
passphrase is your password
timeout is how long you want your wallet to be unlocked