bbbe9b5642ff4507300f5dfb43a1a508 *db2002-12-30d2t01.shn d7c7a91c4046299bfd70b7aaddcf8765 *db2002-12-30d2t02.shn d46f45111772d483b511d57280d32b4d *db2002-12-30d2t03.shn App\Http\Controllers\Api\ChecksumDownloadController::download(): Return value must be of type string, none returned