38fddb919134053d8008620ec6fb5631 *particle2002-08-25d2t01.shn b640082e5854654caa7d27cf3925c339 *particle2002-08-25d2t02.shn 47f931e0984f35dd3930cfe2c90a28c5 *particle2002-08-25d2t03.shn App\Http\Controllers\Api\ChecksumDownloadController::download(): Return value must be of type string, none returned