Apology for the inconvenience. I have fixed your issue. Please check your site.
You have set left padding on the video addon 200px which looks good on desktop view. But you have not set the values for tablet or mobile devices. So, mobile deveice get the same left padding and moves the addon out of the screen. Then we do not see it on mobile view. I have removed all padding from the addon and row/section settings for now. Please adjust it according to your need. If you set any value, then make sure to adjust it for all the devices.