Playing from Soundcloud via API

Hi there - sometimes it works sometimes it desnt.
right now i just have installed a new app - inserted the client ID in the API field of the player - nothing happens when i hit the button. neither on desktop nor on mobile...
it did worke once - i am not sure if this problem was caused by the new WP 3.9.1 update.
any chance that you can check the page?
my best regards