FormBuilder doesn’t send any email

Installed FormBuilder. It looks great and seems to work but:

(1) No email is delivered. No spam filter or anything.

https://www.seerstonehomes.com/contact

(2) Added a submit button, but the form still looks the same, the submit “button” looks like a field, doesn’t change cursor on hover, etc. ???

Could anyone help me see what I did wrong?

I tried both contacting the company who made the plugin and posting on their support blog over a week ago, but there has been no response.

If I can’t get this to work, is there a similarly easy to use form plugin that you all recommend? This was the most comprehensive I could find that was supposed to be compatible with the most recent version of WP.