No one is able to submit our form

No one is able to submit a form?  We're not sure why?

https://solarswitch.org/register-now/

It's a security issue with WordPress CMS that's causing the problem. You can fix it by either using our iframe method:

https://www.jotform.com/help/148-Getting-the-Form-iFrame-Code

Or, use our Embed Form plugin for WordPress: https://wordpress.org/plugins/embed-form/.