4a16a1ecb94564bfc68ddb0be582ca69 *gd70-1-17d2t01.shn 712d2921605f123cf4d90e4a8cb618be *gd70-1-17d2t02.shn d51187d6f55c972031d1ac40baaf5ebe *gd70-1-17d2t03.shn 138b1fb168d88aadef6c92ba832a6a74 *gd70-1-17d2t04.shn App\Http\Controllers\Api\FileDownloadController::download(): Return value must be of type string, none returned