Warning: include_once(Mage/Core/functions.php): failed to open stream: No such file or directory in /var/www/reindesa2013/tienda/app/Mage.php on line 49

Warning: include_once(): Failed opening 'Mage/Core/functions.php' for inclusion (include_path='/var/www/reindesa2013/tienda/app/code/local:/var/www/reindesa2013/tienda/app/code/community:/var/www/reindesa2013/tienda/app/code/core:/var/www/reindesa2013/tienda/lib:.:/usr/share/php') in /var/www/reindesa2013/tienda/app/Mage.php on line 49

Warning: include(Mage/Core/Model/App.php): failed to open stream: No such file or directory in /var/www/reindesa2013/tienda/lib/Varien/Autoload.php on line 93

Warning: include(): Failed opening 'Mage/Core/Model/App.php' for inclusion (include_path='/var/www/reindesa2013/tienda/app/code/local:/var/www/reindesa2013/tienda/app/code/community:/var/www/reindesa2013/tienda/app/code/core:/var/www/reindesa2013/tienda/lib:.:/usr/share/php') in /var/www/reindesa2013/tienda/lib/Varien/Autoload.php on line 93

Fatal error: Class 'Mage_Core_Model_App' not found in /var/www/reindesa2013/tienda/app/Mage.php on line 633