[[BUG] Buying a new course from my studioweb account]

This is still not resolved.

[[BUG] Buying a new course from my studioweb account]

Hello, when I try to login into my account on the Checkout page it doesn't work. It logs me in on the website but on Checkout it doesn't update the information so I can't get to pass Step#1 to pay for what I have in the cart. When I press the "Complete Step#1" button it shows all the red text that you can see in the image I uploaded.

[[BUG]CRUD with PHP and MySQLi Chapter 1 Lesson 6 Question 1]

As I mentioned in the title: Course name is "CRUD with PHP and MySQLi", Chapter 1, Lesson 6, Question 1. To be more exact, this is the link: https://school.studioweb.com/user/course/crud_with_php_and_mysqli/chapter1/lesson6/q1

[[BUG]CRUD with PHP and MySQLi Chapter 1 Lesson 6 Question 1]

I can't pass this question even when I copy-paste the answer from Hints. 

Quote

<?php

if (isset($_POST['submit']))
{
        $id = $_POST['id'];
        $firstname = htmlentities($_POST['firstname'], ENT_QUOTES);
        $lastname = htmlentities($_POST['lastname'], ENT_QUOTES);

        if ($stmt = $mysqli->prepare("UPDATE players SET firstname = ?, lastname = ? WHERE id=?"))
        {
                $stmt->bind_param("ssi", $firstname, $lastname, $id);
                $stmt->execute();
                $stmt->close();
        }

        header("Location: view.php");

}
?>

Maybe it is a bug?