626d9c24b768e5d28bb04775b2670a19 *particle2002-03-23d201.shn a09deba0713b7c5b6292577345c59682 *particle2002-03-23d202.shn 8e37d9c1c453e19a2b79188a36145994 *particle2002-03-23d203.shn App\Http\Controllers\Api\ChecksumDownloadController::download(): Return value must be of type string, none returned