我正在尝试使用Facebook转换API与curl在woocommerce，我的代码如下（访问令牌和像素是隐藏的）：

function callAPIFB($method, $url, $data){
   $curl = curl_init();
   switch ($method){
      case "POST":
         curl_setopt($curl, CURLOPT_POST, 1);
         if ($data)
            curl_setopt($curl, CURLOPT_POSTFIELDS, $data);
         break;
      case "PUT":
         curl_setopt($curl, CURLOPT_CUSTOMREQUEST, "PUT");
         if ($data)
            curl_setopt($curl, CURLOPT_POSTFIELDS, $data);
         break;
      default:
         if ($data)
            $url = sprintf("%s?%s", $url, http_build_query($data));
   }
   // OPTIONS:
   curl_setopt($curl, CURLOPT_URL, $url);
   curl_setopt($curl, CURLOPT_RETURNTRANSFER, 1);
   curl_setopt($curl, CURLOPT_HTTPAUTH, CURLAUTH_BASIC);
   // EXECUTE:
   $result = curl_exec($curl);
   curl_close($curl);
   return $result;
}

add_action( 'woocommerce_add_to_cart', 'facebook_API_addcart');
    function facebook_API_addcart () {

    $ip_add = WC_Geolocation::get_ip_address();
    $user_agent = $_SERVER['HTTP_USER_AGENT'];
    $addcart_time = current_time( 'timestamp' );
    
    $total_cart = WC()->cart->cart_contents_total;
    $currency = get_woocommerce_currency();
    
    $cart_data_array = array(
            "event_name"        => "AddToCart",
            "event_time"        => $addcart_time,
            "user_data"     => array(
                "client_ip_address"     => $ip_add,
                "client_user_agent"     => $user_agent
            ),
            "custom_data"       => array(
            "currency"      => $currency,
            "value"         => $total_cart
            ),
            "test_event_code"       => "TEST72603",     
    );
    
        $call_fb_cart = callAPIFB('POST', 'https://graph.facebook.com/v9.0/PIXEL/events?access_token=ACCEsS-TOKEN', json_encode($cart_data_array));

        ?>
<script>
    console.log(<?php echo $call_fb_cart;?>);</script>
<?php
        
}

但是，我在控制台中从FB获得以下错误代码：错误：代码：100条消息：“（#100）参数数据是必需的”类型：“OAuthException”
这是什么原因？