Fatal error: Uncaught Error: Call to a member function extend() on bool in /var/www/html/public_html/lib/Varien/Simplexml/Config.php:600 Stack trace: #0 /var/www/html/public_html/app/code/core/Mage/Core/Model/Config.php(289): Varien_Simplexml_Config->extend(Object(Mage_Core_Model_Config_Base)) #1 /var/www/html/public_html/app/code/core/Mage/Core/Model/App.php(407): Mage_Core_Model_Config->loadBase() #2 /var/www/html/public_html/app/code/core/Mage/Core/Model/App.php(320): Mage_Core_Model_App->_initBaseConfig() #3 /var/www/html/public_html/app/code/core/Mage/Core/Model/App.php(364): Mage_Core_Model_App->baseInit(Array) #4 /var/www/html/public_html/app/Mage.php(752): Mage_Core_Model_App->run(Array) #5 /var/www/html/public_html/index.php(94): Mage::run('default', 'store') #6 {main} thrown in /var/www/html/public_html/lib/Varien/Simplexml/Config.php on line 600