If tracking numbers are failing to be updated in your Magento store and you find the error Call to a member function getUsername() on a non-object on your order activity screen, this is usually caused by a caching issue in Magento.


Fixing Call to a member function getUsername() on a non-object in Magento


Ask your Magento developer to empty the following locations on your server.


  1. <magento website>/var/session
  2. <magento website>/var/cache
  3. <magento website>/var/locks


Still Having Trouble?


If you are still having trouble please get in touch, we are more than happy to help.