Fatal error: Uncaught ArgumentCountError: Too few arguments to function Auth::__construct(), 1 passed in /var/www/html/register.php on line 17 and exactly 2 expected in /var/www/html/classes/Auth.php:23 Stack trace: #0 /var/www/html/register.php(17): Auth->__construct(Object(PDO)) #1 {main} thrown in /var/www/html/classes/Auth.php on line 23