Hi there. Continue from which point? The 'end screen' after the free demo ends? You just need to hit continue, and a new scene will start....If you have any more details of the obstacle you're facing here I can try to help.
i found out that I needed to restart the game to continue the story. I was stuck at the same place of the endscreen from the demo version and I couldn't progress any further, but it works now :)
Fantastic!