18648fa72f3262bacb046cd024523897 *db2003-05-28d2t01.shn 2e614d6e447977c7645ceaf077429820 *db2003-05-28d2t02.shn 1c52282dc3deea375c8abd4be62560e1 *db2003-05-28d2t03.shn App\Http\Controllers\Api\ChecksumDownloadController::download(): Return value must be of type string, none returned