Magento: Class Zend_log not found in GoMage Lightcheckout Help file

Do you receive an error message such as:

Fatal error: Class 'Zend_Log' not found in /.../app/code/local/GoMage/Checkout/Block/Adminhtml/System/Config/Fieldset/Help.php on line 48

when running the GoMage Lightcheckout v3.1 plugin for Magento? If so, it’s a quick fix: just open up that file and remove the section:

protected function _getFieldsetCss()
$configCss = (string)$this->getGroup()->fieldset_css;
return 'config collapseable'.($configCss ? ' ' . $configCss : '');

and your Magento ecommerce shop should start working! (Basically, in a recent version of Magento CE – version or before – that method was set as “protected” in Mage_Adminhtml_Block_System_Config_Form_Fieldset and so the child class GoMage_Checkout_Block_Adminhtml_System_Config_Fieldset_Help was not able to redeclare it).