0cfc9c4cb61c4472098d762d982985c1 *kdcw01-03-12d1t03.shn 3afa87c7aede377384ec0494178cd966 *kdcw01-03-12d1t04.shn 528fde7c665dcbb96119bd0bf441343c *kdcw01-03-12d1t01.shn b1986933c5462e9c7b9b2d8fba269167 *kdcw01-03-12d1t02.shn App\Http\Controllers\Api\ChecksumDownloadController::download(): Return value must be of type string, none returned