Error audio files when deploy on heroku

Helo,

I am facing some issues deploying my game with Heroku. The problem is with the audio files, the error is Error decoding audio: bgMusic - Unable to decode audio data and Uncaught (in promise) DOMException: Unable to decode audio data.
I am using phaser 3 and I could not find how to fix the issue. Any help will be welcome.

Try opening the audio URLs directly in your browser.

Yes, they work. Locally the game works but when I deployed it to heroku I got those errors and the game is not loading

You open the Heroku audio URLs in the browser and what happens?