Cannot read property 'getJS' of undefined

Hi,
I’m using jw player (current newest version v2.1.6) inside my post using short-codes, and it work until I add “captions”. When I have captions inside it, I JS error “Cannot read property ‘getJS’ of undefined”.

My short-code looks like: [jwplayer width=”100%” aspectratio=”16:9″ file=”http://www.youtube.com/watch?v=ljXDVeiu_fM” plugins=”captions-1″ captions.file=”http://localhost/wwwroot/wp_dev/?attachment_id=253″%5D

Error details:
Uncaught TypeError: Cannot read property ‘getJS’ of undefined jwplayer.js?ver=4.0:49(anonymous function) jwplayer.js?ver=4.0:49e.foreach jwplayer.js?ver=4.0:11h jwplayer.js?ver=4.0:49load jwplayer.js?ver=4.0:51embed jwplayer.js?ver=4.0:88p.setup jwplayer.js?ver=4.0:114(anonymous function) (index):297

Can you please provide me with any help?

Thank you…

https://wordpress.org/plugins/jw-player-plugin-for-wordpress/