It didn't help. Sometimes JD behaves properly, sometimes shows premium error. I can tell however that I don't have such problems while using IDM. So to me it looks like pure JD fault.

For the time being IDM + ExtractNow can do the same job as JD + JD Unrar. You have to play a bit more with IDM to setup it, but once you do it will work fine. Not as great as JD though