495427bba8e1abaaa2ac2dde111982a6 *db01-04-16d1t2.shn 7563af81c7ef75c4e0d1ed4bf4b51eb0 *db01-04-16d1t1.shn App\Http\Controllers\Api\ChecksumDownloadController::download(): Return value must be of type string, none returned