Embedding Base Issue

I’m trying to embed a base on my website for the first time here following these instructions:

Embedding a view or base

Problem is, when I click on the Embed link, I’m taken to a webpage stating “Sorry, the page you were looking for was not found.”

Am I doing something wrong, or is the Embed function broken?

Thanks!

Could you please post the link here?

Perhaps there is a typo in your url ??

Is it happening for all your embedded links or only one ?

The URL opens fine if I copy and paste it. What I mean is if I click the Embed button, it should display code for iframe, like in the screenshot below, which belongs to the article previously mentioned.