Is this a hack attempt, or just a bug? (update on PES 2013)

      Is this a hack attempt, or just a bug? (update on PES 2013)

      Hi all!
      I'm connected to Wiimmfi from PES2013, and I'm getting a message from the game that there is an update available: I should go to the "download"section of the game and update it. I did try, but then game tells me I'm already using the latest version.
      It's strange because I usually don't get this message. I see that there's another user connected to PES2013 over wiimmfi, so I wonder, could it be that this user is trying to hack my Wii? Or is this a bug in wiimmfi, maybe?