TEMPLATE ERROR

Message: An exception has been thrown during the compilation of a template ("Function get_server_default not found") in "privacy-policy.html".
File: /www/wwwroot/emerland.pw/vendor/twig/twig/src/Environment.php
Line: 557
Code: throw new SyntaxError(sprintf('An exception has been thrown during the compilation of a template ("%s").', $e->getMessage()), -1, $source, $e);