Warning: include_once(Mage/Core/functions.php) [function.include-once]: failed to open stream: No such file or directory in /home/content/a/e/d/aed77420/html/shop/app/Mage.php on line 50

Warning: include_once() [function.include]: Failed opening 'Mage/Core/functions.php' for inclusion (include_path='/home/content/a/e/d/aed77420/html/shop/app/code/local:/home/content/a/e/d/aed77420/html/shop/app/code/community:/home/content/a/e/d/aed77420/html/shop/app/code/core:/home/content/a/e/d/aed77420/html/shop/lib:.:/usr/local/php5/lib/php') in /home/content/a/e/d/aed77420/html/shop/app/Mage.php on line 50

Fatal error: Class 'Mage_Core_Model_App' not found in /home/content/a/e/d/aed77420/html/shop/app/Mage.php on line 420