1ed6ff43fa6925e6b6ffe91711ea2abf *los1997-07-05d2t01.shn bf8f67756585912cffe1934bf42d2c77 *los1997-07-05d2t02.shn efa4dbfbe7f64478246776fdcfe3f9c9 *los1997-07-05d2t03.shn c090b2bb0f811b5a76ef82dd9b52e7bb *los1997-07-05d2t04.shn App\Http\Controllers\Api\ChecksumDownloadController::download(): Return value must be of type string, none returned