Warning: require_once(config.php): Failed to open stream: No such file or directory in C:\xampp\htdocs\skitzo.me\functions.php on line 3

Fatal error: Uncaught Error: Failed opening required 'config.php' (include_path='C:\xampp\php\PEAR') in C:\xampp\htdocs\skitzo.me\functions.php:3 Stack trace: #0 C:\xampp\htdocs\skitzo.me\index.php(3): require_once() #1 {main} thrown in C:\xampp\htdocs\skitzo.me\functions.php on line 3