Warning: require_once(files_comun.php): failed to open stream: No such file or directory in /opt/lampp/htdocs/images/index.php on line 4

Fatal error: require_once(): Failed opening required 'files_comun.php' (include_path='.:/opt/lampp/lib/php') in /opt/lampp/htdocs/images/index.php on line 4