Here is part of the issue – Looks like the server doesn’t like something perhaps based upon stock permissions:
POST http://mysite.com/wp-content/plugins/verde_plugin/themes/php/sendmail.php 500 (Internal Server Error)jquery-1.9.1.min.js:4 b.ajaxTransport.sendjquery-1.9.1.min.js:4 b.extend.ajax(index):257 (anonymous function)jquery-1.9.1.min.js:2 b.event.dispatchjquery-1.9.1.min.js:2 b.event.add.v.handle