Code doesn't work, but does work on other code test sites

Site URL: https://www.flatcapfurniture.com/design-your-table

Hi, I am trying to insert this new code into my website that will update prices to the tables I make. I have done it successfully before, but this time it does not work. You can see the old prices are there now and the entire module works as it should. but now I have updates my prices and also added an AR feature. And now when I update the code all I see is "EMBEDDING NOT ALLOWED FOR ORIGIN HTTPS://WWW.FLATCAPFURNITURE.COM"

The code I would like to inject is below

Any help would be greatly appreciated. 

<iframe id="sdv-iframe" width="100%" height="625" src="https://www.shapediver.com/app/iframe?modelViewUrl=https%3A%2F%2Fsdeuc1.eu-central-1.shapediver.com&ticket=406135f0ea92ec94ec61cc977ac54c18d798bd62e0fd7c4095a149504f4a98faf8fa61dd3828774502fe427d62d4bccebc3f8e610741cc34876ca7f3c06df2bebd78087622bece0f0e51e10899cf287c3b6a3ddb268fac692ca4a92628a7ba2c89e2bc3b1e51a2-4d6495ebc0c6b4175ca7ff4d0cac7ff9&primaryColor=%23317DD4&secondaryColor=%23393A45&surfaceColor=%23FFFFFF&backgroundColor=%23F8F8F8&showControls=1&showZoomButton=1&showFullscreenButton=1&logo=" referrerpolicy="origin" allowfullscreen style="overflow-x: hidden; overflow-y: hidden; border-width: 0;"> <p>Your browser does not support iframes.</p> </iframe>

This is typically a restriction placed on the embed code so that it will only appear on your website, not any website. To allow it to display on your website you need to ad your main URL and your Squarespace URL to the allowed list in the settings in your account on: shapediver.com, this should help:

https://help.shapediver.com/doc/iframe-embedding
https://help.shapediver.com/doc/enable-embedding