I get Invalid Ticket Id at every request

I get Invalid Ticket Id at every request

Hello

I followed your guide and then generated an api token. The code (without the token) :

<?php
header('Content-type: application/json');
$token = 'my-token';
$url = " https://crm.zoho.eu/crm/private/json/Contacts/getRecords";
$param = "authtoken=" . $token . "&scope=crmapi";
$ch = curl_init();
curl_setopt($ch, CURLOPT_URL, $url);
curl_setopt($ch, CURLOPT_FOLLOWLOCATION, 1);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
curl_setopt($ch, CURLOPT_TIMEOUT, 30);
curl_setopt($ch, CURLOPT_POST, 1);
curl_setopt($ch, CURLOPT_POSTFIELDS, $param);
$result = curl_exec($ch);
curl_close($ch);
echo $result;
return $result;

The only result i get is "Invalid Ticket Id". Yesterday, I sent an email to the support, no response.. Something is wrong ?