1683e101c73126324adda63716858f8e *db1999-09-17d3t01.shn d4d09582b706e06e6cd2a4ab81cd5f7b *db1999-09-17d3t02.shn 5936529c174d47717792b75d17dc2627 *db1999-09-17d3t03.shn App\Http\Controllers\Api\ChecksumDownloadController::download(): Return value must be of type string, none returned