I'm trying to access the Online Lobby in the Poke Center but it says.....

[Trainer James]

It says that there is an updated version of the game and it says "Please, run the patcher.exe on your game folder." So i've tried searching for patcher.exe in my computer but I'm not finding it. What should I do? I really don't want ot accidentally delete my game. 

Also i've never actually used the battling system for battling other people online so I'm excited to try this.