audio embed issue

Hi,

I tried to embed mp3 files into my post.
I used the following shortcode:

[audio src="https://www.shekinah611bol.org/wp-content/uploads/2014/11/哥林多前書8章.mp3"][/audio]

Within the visual editor, the embed things to work correctly.
But when I access it from the website itself, I cannot see the embedded audio player, instead I see a “Download File” link instead that links back to the post itself.
eg: http://www.shekinah611bol.org/?p=418

Do you know why the default embedded audio player does not work?

Thanks