What version of ACF are you using?
Do you have this problem with the videoJS plugin deactivated?
The reason I ask the second question is that in the code you posted, this part looks like it’s being generated by that plugin and I think it’s the cause of the error
<div style="display:none"><input type="hidden" id="videojs-autoplay-default"
value=""><input type="hidden" id="videojs-preload-default" value=""></div>
