Button not working in uploaded file
I have a button in a file that works well in the local drive, but does not work in the uploaded file. I uploaded in tempshare http://s3.amazonaws.com/tempshare-stage.storyline.articulate.com/sto_1c2tjgp9q15uqscd12t0ubbg0o9/story_html5.html. The button referred to is in the bottom left hand corner.
There are actually two buttons, one on top of the other. One is a Stop button, When clicked it stops the audio, changes its state to hidden, and displays a Play button, which when clicked is supposed to restart the audio (and changes state to hidden, and displays the Stop button). But the play button is not working in the uploaded file. It is a relatively recent occurrence and I have no idea where the problem is. Any guidance will be very much appreciated.
I am attaching the Story file here.