Warning: include_once(Mage/Core/functions.php): Failed to open stream: No such file or directory in /srv/app/app/Mage.php on line 50

Warning: include_once(): Failed opening 'Mage/Core/functions.php' for inclusion (include_path='/srv/app/app/code/local:/srv/app/app/code/community:/srv/app/app/code/core:/srv/app/lib:.:/usr/local/lib/php') in /srv/app/app/Mage.php on line 50

Warning: include_once(Varien/Autoload.php): Failed to open stream: No such file or directory in /srv/app/app/Mage.php on line 51

Warning: include_once(): Failed opening 'Varien/Autoload.php' for inclusion (include_path='/srv/app/app/code/local:/srv/app/app/code/community:/srv/app/app/code/core:/srv/app/lib:.:/usr/local/lib/php') in /srv/app/app/Mage.php on line 51

Fatal error: Uncaught Error: Class "Varien_Autoload" not found in /srv/app/app/Mage.php:54 Stack trace: #0 /srv/app/index.php(65): require_once() #1 {main} thrown in /srv/app/app/Mage.php on line 54