title: Wordpress NetworkError 403/404 : for /wp-admin/admin-ajax.php on this server
body: <p><code>admin-ajax.php</code> file not found in registration using userpro plugin. </p>
  
  <p>i check field validation using <code>admin-ajax.php</code> its workind  but click on register button using <code>admin-ajax.php</code> its not working </p>
  
  <pre><code> NetworkError: 404 Not Found - http://www.example.com/wp-admin/admin-ajax.php
  </code></pre>