HelpProblems with PHP for a website for a FiveM server

I have a PHP problem with my web page. I state that I am developing the site for a FiveM server.

In this page I have to enter the number of players and the number of maximum players that the FiveM server can host.

This is what I wrote:

<?php
    $file = file_get_contents('http://fivem.lrfreeroamitalia.it:30120/dynamic.json');

    $decode = json_decode($file, true);
    $clients = isset($decode['clients']);
    $svmaxclients = isset($decode['sv_maxclients']);

    echo $decode['clients'] . '/' . $decode['sv_maxclients'];
            
?>

The problem with this code is that it gives me this error PHP:

Warning: file_get_contents(http://fivem.lrfreeroamitalia.it:30120/dynamic.json): failed to open stream: Connection timed out in /web/htdocs/www.lrfreeroamitalia.it/home/index.php on line 49

Port 30120 of the remote server is open.

P.S. I use Aruba.it as a provider

Use curl.

I get Status: 200 (OK) when I run your dynamic.json link.