295acdeb0d887ceb6d2ef42174444b43 [shntool] gd77-12-29d1t01.shn b1479e4de8f7d932d2f9fb7dc1054f13 [shntool] gd77-12-29d1t02.shn App\Http\Controllers\Api\ChecksumDownloadController::download(): Return value must be of type string, none returned