Fatal error: Uncaught Error: Call to undefined function simplexml_load_string() in /var/www/html/lib/Varien/Simplexml/Config.php:510 Stack trace: #0 /var/www/html/lib/Varien/Simplexml/Config.php(498): Varien_Simplexml_Config->loadString('<?xml version="...', 'Mage_Core_Model...') #1 /var/www/html/app/code/core/Mage/Core/Model/Config.php(274): Varien_Simplexml_Config->loadFile('/var/www/html/a...') #2 /var/www/html/app/code/core/Mage/Core/Model/App.php(380): Mage_Core_Model_Config->loadBase() #3 /var/www/html/app/code/core/Mage/Core/Model/App.php(293): Mage_Core_Model_App->_initBaseConfig() #4 /var/www/html/app/code/core/Mage/Core/Model/App.php(337): Mage_Core_Model_App->baseInit(Array) #5 /var/www/html/app/Mage.php(683): Mage_Core_Model_App->run(Array) #6 /var/www/html/index.php(71): Mage::run('', 'store') #7 {main} thrown in /var/www/html/lib/Varien/Simplexml/Config.php on line 510