I asked about link to support. Paradoxpalaza.com do not have support section for me.
You want a link to the tech support forum? Here it is. But you can actually get into it until you've registered your base game. To do that, you need to get in contact with the Russian publisher of Paradox games and get them to correct their mistakes.
As for Paradox, they need to get their Russian publishers under control. As it stands right now, the entire nation of Russia can't easily get tech support for legally bought games.