dae0ffe4d95699b846a18bac9c612d2b *dmb1998-08-21d3t1.shn 11ce27d5e00a9833cf1ea0db20650428 *dmb1998-08-21d3t2.shn d24f909c15f47dd0c653fdf60bab7736 *dmb1998-08-21d3t3.shn 4fe93f8cac949f6abc3e8712a58fc213 *dmb1998-08-21d3t4.shn App\Http\Controllers\Api\ChecksumDownloadController::download(): Return value must be of type string, none returned