URL Cannot be Embedded?

<iframe src="https://player.beatstars.com/?storeId=114418" width="100%" height="800" style="max-width:1024px;"> -- none -- </iframe>

Here's the embedded URL in question.

I have absolutely no coding knowledge, but while searching for an answer to my problem.  It seems that Squarespace has a problem embedding iframes due to security measures with http links, but it seems to me that this link is https and should be from a secure position.

If anyone has had the same problem dealing with this in the past, please let me know what you did to solve it.  Currently on trial period right now, and being able to embed this player on my site could lead to me deciding to subscribe or move to another builder that can embed this.

Can you share link to page on your site where you insert above code? We can check easier.