Mike Lyman's dashboard

On the shipwire module for Magento I'm getting the following error when I click the submit to shipwire

Unable to read response, or response is empty
Trace:
#0 /lib/Varien/Http/Client.php(56): Zend_Http_Client->request(NULL)
#1 /app/code/community/Meanbee/Shipwire/Model/Api/Ordersubmit.php(35): Varien_Http_Client->request()
#2 /app/code/community/Meanbee/Shipwire/controllers/FulfillController.php(26): Meanbee_Shipwire_Model_Api_Ordersubmit->submitRequest()
#3 /app/code/core/Mage/Core/Controller/Varien/Action.php(367): Meanbee_Shipwire_FulfillController->submitAction()
#4 /app/code/core/Mage/Core/Controller/Varien/Router/Standard.php(247): Mage_Core_Controller_Varien_Action->dispatch('submit')
#5 /app/code/core/Mage/Core/Controller/Varien/Front.php(158): Mage_Core_Controller_Varien_Router_Standard->match(Object(Mage_Core_Controller_Request_Http))
#6 /app/Mage.php(457): Mage_Core_Controller_Varien_Front->dispatch()
#7 /index.php(52): Mage::run()
#8 {main}

It only happens on some orders and not all and I cannot find out what is the variable that is causing the issue. Is it magento, shipwire or the module?

The interesting thing is if I hit back and then click the same button again to submit the order it has always worked the second time but then says that it is a duplicate order and states that it is ignoring it and marks the order in magento as complete.

Any help would be great.

Our Magento shipwire integration stopped working a few days ago.

We are using magento 1.3.1 and have not changed anything that would cause shipwire integration to stop working.

The problem is we hit "fullfill via shipwire" and the page acts like it is processing or reloading and then nothing happens. No error messages, no orders sent to shipwire. I'm not sure what is happening because I don't see any errors.

I looked to see if there were any updates or upgrades to the extension and there are not.