dd5bb42de967bd1c0a71be2f4e96b74f [shntool] gd70-01-02bt01.shn 5ec899a269c928890a67f8eccba9e43a [shntool] gd70-01-02bt02.shn 677b96d15ff4896f9c45c98a34799b90 [shntool] gd70-01-02bt03.shn 855e256af4bb7e710e1bb0535fdee898 [shntool] gd70-01-02bt04.shn App\Http\Controllers\Api\ChecksumDownloadController::download(): Return value must be of type string, none returned