hosted_wrapper is not defined

Dear,

I used the “content management” to add a row with video. It works perfect, but if I add “Placeholder Image” throw error:
ReferenceError: hosted_wrapper is not defined
In
Plugins / parallax_video_backgrounds_vc / assets / js / ultimate_bg.js? Ver = 1.5.6
Line 697> hosted_wrapper.css ({‘background-image’: ‘url (‘ + poster + ‘)’});

If I leave empty “Placeholder Image” works perfectly.

[IMG]http://i63.tinypic.com/4ug9e9.jpg[/IMG]

Thanks!