Click add video nothing happens

Hello Dear anilvanderzee.

Thank You for contacting with us and for telling us about your problem. Maybe there is any JS errors on your page that is why. Can You check it?

Thank You.

There is in fact a JS error upon clicking that button. Here is the look at the error message from the Chrome console: https://pics.competethemes.com/r0sK. This is coming from the file wp-includes/js/media-views.min.js?ver=4.9.5

Dear anilvanderzee.

Have you solved your this problem?

Thank You.