PRINCE ADOMAKO

I'm following a tutorial on how to create a signup and a login page for my website I keep on receiving this error message "Database error" Below is the authentication controller source code <?php //error_reporting (E_ALL ^ E_NOTICE); session_start(); require 'config/dbb.php'; $errors = array(); $username = ""; $email = ""; //if user clicked on the sign up button if (isset($_POST['signup-btn'])){ $username = $_POST['username']; $email = $_POST['email']; $password = $_POST['password']; $passwordConf = $_POST['passwordConf']; // validation if (empty($username)){ $errors['username'] = "Username required"; } if (!filter_var($email, FILTER_VALIDATE_EMAIL)){ $errors['email'] = "Email address is invalid"; } if (empty($email)){ $errors['email'] = "Email required"; } if (empty($password)){ $errors['password'] = "Password required"; } if ($password !== $passwordConf){ $errors['password'] = "The two passwords do not match"; } $emailQuery = "SELECT * FROM users WHERE email=? LIMIT 1"; $stmt = $conn->prepare($emailQuery); $stmt->bind_param('s', $email); $stmt->execute(); $result = $stmt->get_result(); $userCount = $result->num_rows; $stmt->close(); if ($userCount > 0){ $errors['email'] = "Email already exists"; } if (count($errors) === 0) { $password = password_hash($password, PASSWORD_DEFAULT); $token = bin2hex(random_bytes(50)); $verified = false; $sqlQuery = "INSERT INTO users (username, email, verified, token, password) VALUES (?, ?, ?, ?, ?)"; $stmt = $conn->prepare($sqlQuery); $stmt->bind_param('ssbss', $username, $email, $verified, $token, $password); if ($stmt->execute()) { //login user $user_id = $conn->insert_id; $_SESSION['id'] = $user_id; $_SESSION['username'] = $username; $_SESSION['email'] = $email; $_SESSION['verified'] = $verified; //set flash message $_SESSION['message'] = "You are now logged in!"; $_SESSION['alert-class'] = "alert-success"; header('location:home.php'); exit(); } else $errors['db_error'] = "Database error: failed to register"; } } And below are the source codes for the signup page