Container specified does not exist error

I’m using the ToneDen wordpress plugin. Oddly it appeared once and now won’t load. Using Chrome developer tools i’m seeing this error:

ToneDen Player: the container specified by “#player” does not exist.

Any ideas on how I can fix this. I know basic CSS and html but when it come to Jquery I’m clueless.

https://wordpress.org/plugins/toneden-player-shortcode/