Which code do you mean exactly? It is somehow missing in your post.
And where exactly do you insert it? In the code block in the block editor?
Hi,
It’s an iframe code from Google forms. I paste it into the embed block. Sorry, this is the code.
<iframe src="https://docs.google.com/forms/d/e/1FAIpQLSfV29RrEjmHe9b4P9hzzd1thtCDL4Y2bXdnMQ3C44B0Mbq1ag/viewform?embedded=true" width="640" height="1421" frameborder="0" marginheight="0" marginwidth="0">Loading…</iframe>
You need to paste this code into the HTML block.