df9a389b31a5b9240ac04ee0ea397369 *db2002-07-28d1t01.shn c95052167f628d6f7bf7ba66cd9af5e0 *db2002-07-28d1t02.shn 15930a307c9cc6e731f71fb2519b1fd4 *db2002-07-28d1t03.shn 15bfcd885587c3bd25baf0a99094f0a5 *db2002-07-28d1t04.shn f5733a4a5cb6ac6e6af09b6661f4caaf *db2002-07-28d1t05.shn 8fcb9ea70fe20287fed0837ca017a836 *db2002-07-28d1t06.shn App\Http\Controllers\Api\ChecksumDownloadController::download(): Return value must be of type string, none returned