Sadly I couldnt find which type of gifts I could interact with or how to interact. Maybe next time try to focus on a smaller idea and try to polish that instead of building such a big level because with a little player guidance and then maybe a goal to pick up 10 gifts as fast as possible you already have a working gameloop! :)
Btw you have to check a box on your audiosource for it to play in a loop otherwise it will just stop after being played once and background music should better be played without spacial audio.
But I hope you will continue working on the game, I´m interested where the gameplay is going to go. :3