Warning: require(./naglowek.php): failed to open stream: No such file or directory in /szkutnictwo.php on line 3

Warning: require(./naglowek.php): failed to open stream: No such file or directory in /szkutnictwo.php on line 3

Fatal error: require(): Failed opening required './naglowek.php' (include_path='.:/:/usr/local/php74/lib/pear') in /szkutnictwo.php on line 3