Wordpress: Form stuck on Please Wait after submitting.

I used the WP.com embedding, and my form appears and looks good.  However, every time I attempt to test the form, it gets stuck on "Please Wait."

http://www.christlutheran-etown.com/event/vbs-2018-animal-crackers/

The current plugin you use is blocking the submission. Can you please try to re-embed your form using JotForm oEmbed plugin instead of the default oEmbed in WordPress:

https://wordpress.org/plugins/jotform-oembed/

Let us know if the issue persists. 

Thank you.