Random gamess are being downloaded in transmission

As title said.

I have my system, with jellyfin, radarr, sonarr, prowlarr and transmission (amongst other services but possibly not related).

The thing is, since today's morning, random games are being downloaded in my torrent. I haven't done it, how is it possible that they get added without permission?

By now, I'm just deleting them as I'm at work and have no time to check much.

But it's big quantities, like, 10 or 15 games are being suddenly added. Deleted all of them in the morning, and they showed up again