oEmbed plugin: getting "Blocked form submission" error when submitting the form

why when I click on send appears wait and never get out of this screen?

I think we still have an existing issue with our oEmbed plugin. If you will check your browser console, you'll find an error that is causing this.

I have forwarded this to our developers. If there are updates, you should know it through this thread.

For now, please use our Embed Form plugin: https://wordpress.org/plugins/embed-form/. Or, simply embed your form using one of our embedding methods. I would recommend the iframe: https://www.jotform.com/help/148-Getting-the-Form-iFrame-Code.