Error code 405 when using /server/directory/. code.

[ReduxRedstone]

When using php to access the root directory using /server/directory/. (which is stated on http://scales.pufferpanel.com/docs/serverdirectorydirectory to list the base files) it throws the following error:

Response HTTP Status Code : 405 Response HTTP Body : {"code":"MethodNotAllowedError","message":"GET is not allowed"}

I am able to access other directories such as /server/directory/logs which outputs:

Response HTTP Status Code : 200 Response HTTP Body : [SUPER LONG ARRAY OF FILES]

The code I'm using is as follows:

<?php

$XAccessServer = "KEY";
$XAccessToken = "KEY";

$cURL = curl_init();

curl_setopt($cURL, CURLOPT_URL, 'https://URL:5656/server/directory/.');
curl_setopt($cURL, CURLOPT_CAINFO, getcwd()."\certs\https.pem"); /*Trusting a local copy of the self-signed cert*/
curl_setopt($cURL, CURLOPT_CUSTOMREQUEST, 'GET');
curl_setopt($cURL, CURLOPT_RETURNTRANSFER, 1);
curl_setopt($cURL, CURLOPT_HTTPHEADER, [
        "X-Access-Server: $XAccessServer",
        "X-Access-Token: $XAccessToken",
    ]
);
$data = curl_exec($cURL);

if(!$data) {
    die('Error: "' . curl_error($cURL) . '" - Code: ' . curl_errno($cURL));
} else {
    $data = json_decode($data);
    echo "<pre>".print_r($data, true)."</pre>";
}

curl_close($cURL);

so if the error is in my code please correct me. The error only happens when using /directory/. even though this is documented to work.