Warning: require_once(D:\htdocs\files/lib/db.php): Failed to open stream: No such file or directory in D:\htdocs\files\share.php on line 3

Fatal error: Uncaught Error: Failed opening required 'D:\htdocs\files/lib/db.php' (include_path='D:\xampp\php\PEAR') in D:\htdocs\files\share.php:3 Stack trace: #0 {main} thrown in D:\htdocs\files\share.php on line 3