Sound function failing online

Online experiments
1

My experiment works locally but crushes when I try to run it online.
I get this error message

Screen Shot 2023-03-31 at 5.46.25 PM
Screen Shot 2023-03-31 at 5.46.25 PM1052×582 31.2 KB

and it says that the error is in this section of the code:

 pieces = [pic1, pic2, pic3, pic4];
    polygons = [polygon1, polygon2, polygon3, polygon4];
    excerpts = ["p1.mp3", "p2.mp3", "p3.mp3", "p4.mp3"];
    util.shuffle(excerpts);
    console.log(excerpts);
    excerpt1 = new sound.Sound({ "win": PsychoJS.window, "name": (folder + excerpts[0]), "hamming": true });
    excerpt2 = new sound.Sound({ "win": PsychoJS.window, "name": (folder + excerpts[1]), "hamming": true });
    excerpt3 = new sound.Sound({ "win": PsychoJS.window, "name": (folder + excerpts[2]), "hamming": true });
    excerpt4 = new sound.Sound({ "win": PsychoJS.window, "name": (folder + excerpts[3]), "hamming": true });
    excerpts = [excerpt1, excerpt2, excerpt3, excerpt4];

Specifically, it fails on this line:
excerpt1 = new sound.Sound({ "win": PsychoJS.window, "name": (folder + excerpts[0]), "hamming": true });

Any idea on what’s wrong here?