Peolple API - Error 429 RESOURCE_EXHAUSTED

Question

I’m wearing the following package to store contacts in the service provided by Google, that is to say, Google Contacts.

Requests of the type GET They work perfectly and I can extract the contacts correctly. However, when I make a request POST, the following error is returned:

Uncaught Exception: { "error": { "code": 429, "message": "Resource has been exhausted (e.g. check quota).", "status": "RESOURCE_EXHAUSTED", "details": [ { "@type": "type.googleapis.com/google.rpc.QuotaFailure", "violations": [ { "subject": "QUOTA_EXCEEDED", "description": "FBS quota limit exceeded." } ] } ] } } in C:\xampp\htdocs\GoogleContactsAPI\vendor\rapidwebltd\php-google-people-api\src\GooglePeople.php:132

I know the error is clear, however, the return is not correct because I did not exceed the Cota, only have 6 requests made

I leave here the code used (the initial variavies are not filled in because they are secret):

<?php

$clientId     = '';
$clientSecret = '';
$refreshToken = '';
$scopes       = '';

$googleOAuth2Handler = new GoogleOAuth2Handler($clientId, $clientSecret, $scopes, $refreshToken);
$people = new GooglePeople($googleOAuth2Handler);


if(isset($_POST['submit'])) {

    $nome = htmlspecialchars($_POST["inputName"]);
    $email = htmlspecialchars($_POST["inputEmail"]);
    $number1 = htmlspecialchars($_POST["inputNumber1"]);
    $number2 = htmlspecialchars($_POST["inputNumber2"]);
    $city = htmlspecialchars($_POST["inputCity"]);
    $state = htmlspecialchars($_POST["inputState"]);


    $contact = new Contact($people);
    $contact->names[0] = new stdClass;
    $contact->names[0]->givenName = $nome;
    $contact->emailAddresses[0] = new stdClass;
    $contact->emailAddresses[0]->value = $email;
    $contact->phoneNumbers[0] = new stdClass;
    $contact->phoneNumbers[0]->value = $number1;
    $contact->phoneNumbers[1] = new stdClass;
    $contact->phoneNumbers[1]->value = $number2;
    $contact->addresses[0] = new stdClass;
    $contact->addresses[0]->city = $city;
    $contact->addresses[0]->region = $state;*/
    $contact->save();

    if ($contact->save()) {

        echo "<script type='text/javascript'>
        $(document).ready(function(){
            $('#modalResponseSuccess').modal('show');
        });
        </script>";

    }else{
        echo "<script type='text/javascript'>
        $(document).ready(function(){
            $('#modalResponseError').modal('show');
        });
        </script>";
    }

}


?>

Has anyone ever been in a similar situation ?

Thank you.