How to insert widget code

Hi. I’m trying to insert a widget code into one of the column I created but I don’t see option to do that. I see a shortcode Plus sign but when I click it I don’t see option to insert code for that widget.
I want to insert this
<iframe src=”http://widgets.ikitesurf.com/widgets/web/currentConditions?spot_id=51197&units_wind=mph&units_temp=C&width=200&height=245&include_fx=false&color=1E1E1E&activity=Kite&app=ikitesurf&#8221; width=”200″ height=”245″ frameborder=”0″ scrolling=”no” align=”top”></iframe>

I tried to go to a text portion of wordpress to insert it into the right space but then when updated the page does not display it.
Thanks for help

https://ww.wp.xz.cn/plugins/page-builder-sandwich/