I'm going to refrain from rating since the game has too many bugs to complete the story.
First I got stuck on the popup screen. As someone else pointed out, closing it before progressing the dialogue cause the game to lock.
Then I got stuck in the singing competition screen. Pressing the arrows caused negative score and stopped the note arrows from moving upwards. The game locks there.
Try to fix your game build before the rating week is over, so others can fully enjoy your creation. Good luck!