title: magento: PayPal NVP gateway errors: Timeout processing request (#10001: Internal Error)
body: <p>I am getting a strange error, which I cannot seem to track down on the Paypal error list:
  <a href="https://developer.paypal.com/webapps/developer/docs/classic/api/errorcodes/" rel="nofollow">https://developer.paypal.com/webapps/developer/docs/classic/api/errorcodes/</a></p>
  
  <p>This is specific to Magento Paypal checkout, and the error log says:</p>
  
  <pre><code>exception 'Mage_Core_Exception' with message 'PayPal NVP gateway errors: Timeout processing request (#10001: Internal Error). Correlation ID: c93a329880ec. Version: .' in /var/www/magento/app/Mage.php:579
  Stack trace:
  #0 /var/www/magento/app/code/community/Paypal/Expresscheckout/Model/Api/Nvp.php(1042): Mage::exception('Mage_Core', 'PayPal NVP gate...')
  #1 /var/www/magento/app/code/community/Paypal/Expresscheckout/Model/Api/Nvp.php(1003): Paypal_Expresscheckout_Model_Api_Nvp-&gt;_handleCallErrors(Array)
  #2 /var/www/magento/app/code/community/Paypal/Expresscheckout/Model/Api/Nvp.php(612): Paypal_Expresscheckout_Model_Api_Nvp-&gt;call('SetExpressCheck...', Array)
  #3 /var/www/magento/app/code/community/Paypal/Expresscheckout/Model/Express/Checkout.php(351): Paypal_Expresscheckout_Model_Api_Nvp-&gt;callSetExpressCheckout()
  #4 /var/www/magento/app/code/community/Paypal/Expresscheckout/Controller/Express/Abstract.php(127): Paypal_Expresscheckout_Model_Express_Checkout-&gt;start('https://order...', 'https://order...')
  #5 /var/www/magento/app/code/core/Mage/Core/Controller/Varien/Action.php(419): Paypal_Expresscheckout_Controller_Express_Abstract-&gt;startAction()
  #6 /var/www/magento/app/code/core/Mage/Core/Controller/Varien/Router/Standard.php(250): Mage_Core_Controller_Varien_Action-&gt;dispatch('start')
  #7 /var/www/magento/app/code/core/Mage/Core/Controller/Varien/Front.php(176): Mage_Core_Controller_Varien_Router_Standard-&gt;match(Object(Mage_Core_Controller_Request_Http))
  #8 /var/www/magento/app/code/core/Mage/Core/Model/App.php(354): Mage_Core_Controller_Varien_Front-&gt;dispatch()
  #9 /var/www/magento/app/Mage.php(683): Mage_Core_Model_App-&gt;run(Array)
  #10 /var/www/magento/index.php(87): Mage::run('default', 'store')
  #11 {main}
  </code></pre>
  
  <p>I could not see why it should time out after 3 seconds of processing, and when I have tested with the sanbox mode, it went through without any issues, yet with the real test it fails.</p>
  
  <p>Any ideas?</p>