have you downloaded the updated miner from https://github.com/btscube/steem/releases/ ?
Latest is "steem-win-x64-012.zip" and a updated blockchain from http://www.steemitup.eu/ for the new miner with config.ini modified as per your account and settings.
Yes, I did it last night, so it should be up to date.
The syncing process is over! But unfortunatelly I'm not mining, because I got this error:
Could you please help me solve this?