add arrows to scrollgallery

Hello, I thought i added the correct shortcode for adding navigation arrows to the gallery but for some reason I am not seeing the arrows, shortcode on page is:

[scrollGallery id=2 autoScroll=false thumbsdown=true thumbArrows=true]

Page link where gallery appears is: http://www.kathleendipaolodesigns.com/bathrooms/

https://wordpress.org/plugins/nextgen-scrollgallery/