Warning: include(lib/smarty/libs/Smarty.class.php): Failed to open stream: No such file or directory in /var/www/html/index.php on line 11

Warning: include(): Failed opening 'lib/smarty/libs/Smarty.class.php' for inclusion (include_path='.:/usr/local/lib/php') in /var/www/html/index.php on line 11

Fatal error: Uncaught Error: Class "Smarty" not found in /var/www/html/index.php:83 Stack trace: #0 {main} thrown in /var/www/html/index.php on line 83