Warning: require(structures/header.php): failed to open stream: No such file or directory in /index.php on line 5

Warning: require(structures/header.php): failed to open stream: No such file or directory in /index.php on line 5

Fatal error: require(): Failed opening required 'structures/header.php' (include_path='.:/:/usr/local/php74/lib/pear') in /index.php on line 5