7d42641c2d1a848b1d19b7bec54c606d *lf2004-07-17d2t01.shn cb2b62005cb3d513aae28548627f7b48 *lf2004-07-17d2t02.shn App\Http\Controllers\Api\ChecksumDownloadController::download(): Return value must be of type string, none returned