f006cc4dfb4174cb492ff0f7316fed6f *rad2004-01-02d1t01.shn 954674b831870fea75d79f370a6bf06b *rad2004-01-02d1t02.shn 62bc4153bd13ef0275bb13cf4b9f6014 *rad2004-01-02d1t03.shn App\Http\Controllers\Api\ChecksumDownloadController::download(): Return value must be of type string, none returned