Harmony Theme Music Issue

Hi everyone. I really could use some help in figuring this out.
I’m using the Harmony theme for our website. The issue is that on the albums page when you click play on the track, the track opens in a window instead of playing from the album page.

test with the first track.
https://marcobeltrami.com/albums/ben-hur/

The Harmony page I tried the demo at, the audio track plays on the same page as here:
https://themes.guillaumevoisin.fr/harmony/albums/inside-time/

I would like for it to play the tracks on the page that way no one has to hit back space to go back to play the others. If anyone knows a way to fix this please let me know.