Fatal error: Uncaught Error: Call to a member function getContents() on null in /var/www/html/app/code/local/TiendamiaC/GoogleAnalytics/Model/Sitemaps.php:388 Stack trace: #0 /var/www/html/app/code/local/TiendamiaC/GoogleAnalytics/controllers/SitemapsController.php(9): TiendamiaC_GoogleAnalytics_Model_Sitemaps->getSitemapIndexFromS3() #1 /var/www/html/app/code/local/Mage/Core/Controller/Varien/Action.php(417): TiendamiaC_GoogleAnalytics_SitemapsController->getSitemapIndexAction() #2 /var/www/html/app/code/core/Mage/Core/Controller/Varien/Router/Standard.php(254): Mage_Core_Controller_Varien_Action->dispatch('getSitemapIndex') #3 /var/www/html/app/code/core/Mage/Core/Controller/Varien/Front.php(172): Mage_Core_Controller_Varien_Router_Standard->match(Object(Mage_Core_Controller_Request_Http)) #4 /var/www/html/app/code/core/Mage/Core/Model/App.php(365): Mage_Core_Controller_Varien_Front->dispatch() #5 /var/www/html/app/Mage.php(806): Mage_Core_Model_App->run(Array) #6 /var/www/html/index.php(95): Mage::run('', 'store') #7 { in /var/www/html/app/code/local/TiendamiaC/GoogleAnalytics/Model/Sitemaps.php on line 388