title: Fatal error: Class 'Modelpaymentfreecheckout' not found OpenCart
body: <p>I am running Opencart v1.5.5.1 and all was going well, I am using PayPal for my standard payments which works but as an opening gift I am giving away some products for free. I have set the price to 0 and enabled the free checkout extension, but I am getting this error when I try to select "<em>Free checkout</em>" when I checkout.</p>
  
  <pre><code>Fatal error: Class 'Modelpaymentfreecheckout' not found in /home/content/00/10567100/html/reseller/vqmod/vqcache/vq2-system_engine_loader.php on line 49
  </code></pre>
  
  <p>I have uploaded a fresh copy of <code>catalog/model/payment/free_checkout.php</code> and <code>free_checkout.tpl</code> to their appropriate directories from a fresh version of OpenCart but it still does not work. I haven't been able to find anything online about this particular error either.</p>
  
  <p>Any ideas would be welcomed :)</p>