Wistia Embeds aren't displaying/responsive

Here’s the URL: https://www.spyfu.com/blog/tutorial-start-adwords-campaign-scratch-2/

We’ve added the fitVids snippet that was suggested in another forum posts but we can’t get this to work.

Are we missing something?

Sorry @Zachary_Harris but I can’t see the page that link goes to, it’s showing a 502 error