Plutonium

Are you using plutonium.exe to launch the game? You're probably using the old t6rmp and t6rzm files, they're not used anymore https://forum.plutonium.pw/topic/2819/how-to-install-plutonium-t6

Are you launching the games through plutonium.exe?

If you're facing issues with piry, use the torrent instead https://dss0.cc/alterwarez/download/pluto_t6_full_game.torrent