c72f31cefbdcad56e8f324b420c666fa *nd01-10-20d1t03.shn 51aa92dfba21e3cf5117a590801f0838 *nd01-10-20d1t02.shn f360483240651d7808197024adea464f *nd01-10-20d1t01.shn e9d1339998d70b748b0de43623286901 *nd01-10-20d1t04.shn App\Http\Controllers\Api\ChecksumDownloadController::download(): Return value must be of type string, none returned