Fatal error: Uncaught TypeError: Argument 1 passed to WMG_Responsive_Helper_Data::canShowProductPageFullscreenForProduct() must be an instance of Mage_Catalog_Model_Product, null given, called in /var/www/html/app/code/local/WMG/Responsive/Model/Observer.php on line 47 and defined in /var/www/html/app/code/local/WMG/Responsive/Helper/Data.php:37 Stack trace: #0 /var/www/html/app/code/local/WMG/Responsive/Model/Observer.php(47): WMG_Responsive_Helper_Data->canShowProductPageFullscreenForProduct(NULL) #1 /var/www/html/app/code/local/Mage/Core/Model/App.php(1353): WMG_Responsive_Model_Observer->updateProductView(Object(Varien_Event_Observer)) #2 /var/www/html/app/code/local/Mage/Core/Model/App.php(1332): Mage_Core_Model_App->_callObserverMethod(Object(WMG_Responsive_Model_Observer), 'updateProductVi...', Object(Varien_Event_Observer)) #3 /var/www/html/app/Mage.php(448): Mage_Core_Model_App->dispatchEvent('controller_acti...', Array) #4 /var/www/html/app/code/core/Mage/Core/Controller/Varien/Action.php(301): Mage::dispatchEve in /var/www/html/app/code/local/WMG/Responsive/Helper/Data.php on line 37