Embed a Powtoon Video

I am trying to use the I Frame widget to embed a Powtoon video into my form but keep getting a error message "Not Found".  Do you have any suggestions?

<iframe width="undefined" height="undefined" src="https://www.powtoon.com/embed/gfgZccDutt9/" frameborder="0" allowfullscreen></iframe>

I checked your forms but I can't seem to find an iframe embed widget that's added in it.

Also, you don't need to use the whole "iframe embed code" of your video. Just add the video URL.

Here's an example:

Here's the form: https://form.jotform.com/202256716827055