Warning: include(Mage/Core/Model/Config/Base.php): failed to open stream: No such file or directory in /home/emthemes/demo/web/supertheme/lib/Varien/Autoload.php on line 94

Warning: include(): Failed opening 'Mage/Core/Model/Config/Base.php' for inclusion (include_path='/home/emthemes/demo/web/supertheme/app/code/local:/home/emthemes/demo/web/supertheme/app/code/community:/home/emthemes/demo/web/supertheme/app/code/core:/home/emthemes/demo/web/supertheme/lib:.:/usr/share/pear:/usr/share/php') in /home/emthemes/demo/web/supertheme/lib/Varien/Autoload.php on line 94

Fatal error: Class 'Mage_Core_Model_Config_Base' not found in /home/emthemes/demo/web/supertheme/app/code/core/Mage/Core/Model/Config.php on line 36