查询产品时 - 我无法获得任何分组产品 - 无论是单独还是产品列表。简单的通过罚款..但没有分组。想法？
（Magento 1.9.2）
"Recoverable Error: Argument 1 passed to Mage_Catalog_Model_Api2_Product_Rest_Admin_V1::_filterOutArrayKeys() must be an array, null given, called in /home/www/r2h/www.return2health.net-new/public/app/code/core/Mage/Catalog/Model/Api2/Product/Rest/Admin/V1.php on line 50 and defined in /home/www/r2h/www.return2health.net-new/public/app/code/core/Mage/Catalog/Model/Api2/Product/Rest/Admin/V1.php on line 71",
"trace": "#0
etc..