Need Code Help please - Securitytoken Error

[Igel1]

Hello all,

I use "DownloadsII Mod" and need a lizenzfunktion for downloadfiles.
So i look around and find "Release Box for DownloadsII", but it does not work and have funktion that i dont need.
Now I built a template only with a lizenzbox, when i click "download" the lizenzbox appears, then i click on submit a securitytoken error appears.

The code i use:

box_agree

<form action="{vb:raw agree_url}" method="post" class="vbform">
	<div class="block">
		<h2 class="blockhead">{vb:rawphrase box_agree}</h2>
		<ul class="blockbody settings_form_border formcontrols">
			<li class="blockrow">{vb:rawphrase box_agree_message}</li>
			<li class="blockrow">
				<div class="blockfoot actionbuttons" align="center">
					<input type="hidden" name="s" value="{vb:raw session.sessionhash}" />
					<input type="hidden" name="securitytoken" value="{vb:raw bbuserinfo.securitytoken}" />
					<input type="hidden" name="agree" value="1" />
					<input type="submit" name="submit" value="Akzeptieren" accesskey="s" class="button" />
				</div>
			</li>
		</ul>
	</div>
</form>

Hook: dl2_start

if ( $vbulletin->options['box_agree_onoff'] AND $_REQUEST['do'] == 'file' AND $_REQUEST['act'] == 'down' AND ! $_POST['agree'] )
{
	$templater = vB_Template::create('box_agree');
		$templater->register('agree_url', 'downloads.php?do=file&id='.$_GET['id'].'&act=down');
	$html = $templater->render();
	
	$navbits[''] = $vbphrase['box_agree'];
	$navbits = construct_navbits($navbits);
	$navbar = render_navbar_template($navbits);

	$pagetitle = $vbphrase['box_agree'] . ' - ' . $vbulletin->options['bbtitle'];

	$templater = vB_Template::create('shell_blank');
		$templater->register_page_templates();
		$templater->register('pagetitle', $pagetitle);
		$templater->register('navbar', $navbar);
		$templater->register('html', $html);
		
	print_output($templater->render());
}

cache_templates

$cache[] = 'box_agree';

Please can anybody help me.

Sorry for my english.