As Bubuniu said, we used some of our players to check the translation. The job of translation has been done by a professionnal translator. But since the translators haven't played the game as much as you guys, it is interesting to have your feedback.
All your remarks will be taken into account. We are going to solve that as quick as possible.
We knew there were some improvements to make, but we wanted to bring you this first polish version quickly so that polish players who don't speak english can start enjoying the game.