Warning: include_once(Mage/Core/functions.php): Failed to open stream: No such file or directory in /www/wwwroot/www.yescosplay.com/pub/app/Mage.php on line 32

Warning: include_once(): Failed opening 'Mage/Core/functions.php' for inclusion (include_path='/www/wwwroot/www.yescosplay.com/pub/app/code/local:/www/wwwroot/www.yescosplay.com/pub/app/code/community:/www/wwwroot/www.yescosplay.com/pub/app/code/core:/www/wwwroot/www.yescosplay.com/pub/lib:.:') in /www/wwwroot/www.yescosplay.com/pub/app/Mage.php on line 32

Fatal error: Uncaught Error: Class "Mage_Core_Model_App" not found in /www/wwwroot/www.yescosplay.com/pub/app/Mage.php:735 Stack trace: #0 /www/wwwroot/www.yescosplay.com/pub/index.php(55): Mage::run() #1 {main} thrown in /www/wwwroot/www.yescosplay.com/pub/app/Mage.php on line 735