Widgets not dragging into columns?

Hello,

I’m eager to use this plugin but can’t seem to get widgets to display horizontally on the page – they simply appear flush left and can’t be dragged or repositioned in the mega menu builder.

I’m using iThemes Builder and have added the code as recommended.

http://lynxcommunications.ca/kmt/

If this requires buying the pro version I’m happy to do so as long as it resolves the issue!

Thanks,
Carole

https://ww.wp.xz.cn/plugins/megamenu/