Add Metadata for Facebook Instant Articles to WP site

Hello, I am trying to add the metadata for Facebook Articles (a new FB feature) to my website, Happiness1st.com

It keeps telling me it has the FB code but not the page ID. I am copying the page ID from the information FB provides:
https://www.happiness1st.com/wp-content/uploads/2016/04/FB-meta-for-articles-onto-website.jpg

I am not a coder or very knowledgeable — just a self-taught small business owner/author.

I am hoping someone can tell me how to do this.

I’ve opened the Appearances/editor and put the code at the bottom right before the end, that didn’t work. I also put it on the home page, that didn’t work. I’ve also put it in a widget on the home page, that didn’t work.

I will really appreciate any help you can provide. Thank you.

Jeanine Joy