Copied! Copy Stacktrace Search Stackoverflow Search Google Exception

Unknown Propertyyii\base\UnknownPropertyException

Setting unknown property: backend\models\Categories::0

$_GET = [
    'url' => '309-grandstream-gxp1760w---ip-telefon',
];

$_SESSION = [
    '__flash' => [],
    'viewedProductsI' => [
        309,
    ],
];