Which product types exist in Magento? zendnwar October 2, 2014 Magento 0 Comments Configurable Simple Grouped Bundle Virtual Downloadable Related Posts How to left Navigation Ascending order in Magento? zendnwar April 5, 2013 It is very simple. Please go to \app\design\frontend\default\<Your_theme>\template\catalo .. Fatal error: Uncaught Error: Function name must be a string in app/code/core/Mage/Core/Model/Layout.php:555 zendnwar February 24, 2016 This is because you need to clarify the `$callback` variable will be called as a method (functi ..