The rb update request is not processed, how to solve?

Question

PHP

there is a form that sends a request to the save.php file.
This file contains the code:

require '../db.php';

$id =  $_POST['id'];
$title =  $_POST['title'];
$m_images =  $_POST['m_images'];

$game = R::load('games', $id);

$game["title"] = $title; 
$game["m_images"] = $m_images; 

R::store($game);

header('Location: /admin/editgame.php?id=' . $id');

But for some reason, the request is not processed after saving:
The page is not available until it can process this request