创建产品的 Magento 错误

我的Magento API比我创建产品时出错：

Fatal error: Uncaught SoapFault exception: [2] Access denied. in /Applications/MAMP/htdocs/magento/soap.php:210 Stack trace: #0 /Applications/MAMP/htdocs/magento/soap.php(210): SoapClient->__call('call', Array) #1 /Applications/MAMP/htdocs/magento/soap.php(210): SoapClient->call('2017c612ade741b...', 'product_attribu...') #2 /Applications/MAMP/htdocs/magento/soap.php(90): Client->_APIgetAttributeSets() #3 /Applications/MAMP/htdocs/magento/soap.php(269): Client->APIcreateNewProduct(Array) #4 {main} thrown in /Applications/MAMP/htdocs/magento/soap.php on line 210

这是我的方法：

public function APIcreateNewProduct( $newProductData ) {
    $error = array();
    if( empty( $newProductData ) ) {
        $error[] = 'Empty product data';
    }
    if( empty( $error ) ) {
        $token = $this->_getToken();
        $client = $this->_getClient();
//90 line
        $set = $this->_APIgetAttributeSets();
        $productId = $client->call($token, self::CREATE_PRODUCT, array('simple', $set['set_id'], rand().'sku_of_product', $newProductData));
        return $productId;
    } else {
        return $this->_apiJsonResult( $error );
    }
}

及其_APIgetAttributeSets（）：

private function _APIgetAttributeSets() {
    $token = $this->_getToken();
    $client = $this->_getClient();
//210 LINE
    $attributeSets = $client->call($token, self::PRODUCT_ATTRIBUTE_LIST);
    $set = current($attributeSets);
    return $set;
}

登录并检索产品列表就可以了。

我的创作错误在哪里？谢谢