Storify link will not embed widget

Hello, there!

I have installed this plugin in my website here:

https://pulse.changemakers.com and it seems to work well, but when I click the button to enter the Storify in my post, it gets the text but no the widget. What am I doing wrong?

Thank you in advance,

Dani

https://www.ads-software.com/extend/plugins/storify/