It loads but nothing happen

Hello,

I’ve got a problem but can’t solved it, thanks to help me.
When i enter information in the form and submit it, it loads but nothing happen : no email is send, no message is show. There is the “Load” icon but nothing happen.
You can try it here : http://shortways.com/contact

Thanks for helping me !!

https://wordpress.org/plugins/contact-form-7/