cd7be978f3e4e6a7408ea41dff8ba9ad *db1999-04-23d1t02.shn 20d451db12ca1217a66f049fb1d67215 *db1999-04-23d1t04.shn 1c79593a2ecf33681a1da38d86920fcf *db1999-04-23d1t03.shn 73e8d9602123857f8f7cccf00f281cda *db1999-04-23d1t01.shn App\Http\Controllers\Api\ChecksumDownloadController::download(): Return value must be of type string, none returned