Plugin Not Working

Sorry for the non-specific title, but basically this plug-in isn’t working on my site. The album covers do not load and the music does not play. I have tried removing/re-uploading the music to my server and even re-encoding the music files. The player itself seems to function, but when I hit the play button nothing happens, and it returns to the “pause” state within a few seconds. The page on my website that is having problems is:
http://www.keithjakee.com/music-samples/

Please help me resolve this dilemma, and thank you in advance.

https://wordpress.org/plugins/html5-jquery-audio-player/