Api error: An admin user is required

[descom]

Hello,

I try this code:

$ch = curl_init();
curl_setopt($ch, CURLOPT_URL, 'https://******/api/includes/api.php');
curl_setopt($ch, CURLOPT_POST, 1);
curl_setopt($ch, CURLOPT_POSTFIELDS,
    http_build_query(
        [
            'action' => 'GetClients',
            // See https://developers.whmcs.com/api/authentication
            'identifier' => '*****',
            'secret' => '*****',
            'search' => 'domain',
            'responsetype' => 'json',
        ]
    )
);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
$response = curl_exec($ch);
curl_close($ch);

var_dump($response);

But i get this error: {"result":"error","message":"An admin user is required"}

My Ip is listed in Api Alloweds Ips and I have whmcs v7.9.1

Whats is the problem?

Thanks,

Cesar

[descom]

replace 

https://******/api/includes/api.php

for this

https://******/api.php

🤕