80515a93eefc8fd242ff350af0a3ba4a *db2003-04-30d1t01.shn 02ab21cdd5fb8b67fa5981b31045684c *db2003-04-30d1t02.shn 27f65e61c02ca22a165aa70bfb29e5e2 *db2003-04-30d1t03.shn App\Http\Controllers\Api\FileDownloadController::download(): Return value must be of type string, none returned