b5c3c740b62c8a89748d1155ad1c0347 *abb00-07-22d3t01.shn aaa4a786b726e566baf913c1e7675c07 *abb00-07-22d3t02.shn App\Http\Controllers\Api\ChecksumDownloadController::download(): Return value must be of type string, none returned