Firebase PHP SDK : The token was issued in the future

So I was working with my Firebase project using just html and PHP, and sometimes when I logging in, it keeps telling me that my token was issued in the future. It happens again and again, I have no idea how to stop it.

Screenshot Error

Is there a way to make a new token? So that I finally can log in? Thank you.

Code :

login-process.php

if (isset($_POST['login_btn'])) {
    $email = $_POST['email'];
    $clearTextPassword = $_POST['pwd'];

    try {
       $user = $auth->getUserByEmail("$email");

       try {
          $signInResult = $auth->signInWithEmailAndPassword($email, $clearTextPassword);
          $idTokenString = $signInResult->idToken();

          try {
             $verifiedIdToken = $auth->verifyIdToken($idTokenString);
             $uid = $verifiedIdToken->claims()->get('sub');
             $_SESSION['verified_user_id'] = $uid;
             $_SESSION['idTokenString'] = $idTokenString;

             $_SESSION['status'] = "Login Success.";
             header('Location: home.php');
             exit();

          } catch (FailedToVerifyToken $e) {
                $_SESSION['status_error'] = "The token is invalid: " . $e->getMessage();
                header('Location: login.php');
                exit();
          }

      } catch (Exception $e) {
         $_SESSION['status_error'] = "Email atau kata sandi salah. Coba lagi.";
         header('Location: login.php');
         exit();
      }

   } catch (\Kreait\Firebase\Exception\Auth\UserNotFound $e) {
      $_SESSION['status_error'] = $e->getMessage();
      header('Location: login.php');
      exit();
   }

} else {
    $_SESSION['status_error'] = "Not Allowed.";
    header('Location: login.php');
    exit();
}

auth.php (this file is included in every files that user needs to be logged in first)

if (isset($_SESSION['verified_user_id'])) {

    $uid = $_SESSION['verified_user_id'];
    $idTokenString = $_SESSION['idTokenString'];

    try {
        $verifiedIdToken = $auth->verifyIdToken($idTokenString);

    } catch (FailedToVerifyToken $e) {
        $_SESSION['expire_status'] = "Token Expired/Invalid. Please Login again.";
        header('Location: logout.php');
        exit();
    }

} else {
    $_SESSION['status_error'] = "Please Log in First.";
    header('Location: login.php');
    exit();
}