I am about to launch a new Magnento site tomorrow morning, but have noticed this error appearing when I was testing the site.
I believe it is occuring because I have indicated a custom shipping model.
It happens after the order has been processed and I am trying to ship. Here is the error: Fatal error: Call to a member function isShippingLabelsAvailable() on a non-object in /home/easyente/public_html/app/code/core/Mage/Adminhtml/Block/Sales/Order/Shipment/Create/[url removed, login to view] on line 132
I have found some possible solutions online - but don't have the technical ability to do this myself ([url removed, login to view])
I would like a magento expert to:
a) fix this error by writing code as per the solution above
b) install an extension called Fondis_Australia ([url removed, login to view]) so I can customise shipping to suit Australia.
Looking forward to hearing from a great expert soon.