title: Opencart paypal standard not processing
body: <p>I've googled like crazy and can't find a solution. I'm using opencart 1.5.5.1 with paypal standard. It processes and returns to the site and the site says the order has been processed. However, nothing shows up in the users order history or in the admin dashboard. Here's a rundown of the settings. </p>
  
  <ul>
  <li>Transaction method - sale</li>
  <li>All statuses set to match their title, i.e completed status set to complete</li>
  <li>status set to enabled</li>
  </ul>
  
  <p>On paypal website preferences </p>
  
  <ul>
  <li>Auto Return: on</li>
  <li>return URL <a href="http://www.mydomain.com/store/index.php?route=payment/pp_standard/callback" rel="nofollow">http://www.mydomain.com/store/index.php?route=payment/pp_standard/callback</a></li>
  <li>Payment data transfer: on</li>
  <li>encrypted website payments: off</li>
  <li>express checkout: no </li>
  <li>instant payment notification url: <a href="http://www.mydomain.com/store/index.php?route=payment/pp_standard/callback" rel="nofollow">http://www.mydomain.com/store/index.php?route=payment/pp_standard/callback</a></li>
  </ul>
  
  <p>So the core issue is that the users get's taken to paypal and get's returned to the website after paying, however, an order does not show up on either the user's end, or on the owner/admin's side. Anyone have any ideas what might be causing the trouble? </p>