8de6c5240562d6de94971aaa593ef3f0 [shntool] gd71-04-25s2pT01.shn f241faa42ee6716be40c597e4f61772a [shntool] gd71-04-25s2pT02.shn 5463a7dfa7fdb78eed351a04e755b432 [shntool] gd71-04-25s2pT03.shn cb715b196b46c0ee01d904b3b81ba165 [shntool] gd71-04-25s2pT04.shn cd4aee7d4bd2057914ad87ccdec3d7d2 [shntool] gd71-04-25s2pT05.shn App\Http\Controllers\Api\ChecksumDownloadController::download(): Return value must be of type string, none returned