4299ac469fbba65e121344c06290198b *db2000-12-03d2t01.shn c2249a8af6c5f8004aaae12e1fefe3dd *db2000-12-03d2t02.shn 4f165cf5468c675130051ecdd306cceb *db2000-12-03d2t03.shn App\Http\Controllers\Api\ChecksumDownloadController::download(): Return value must be of type string, none returned