Pokémon Ranger, Ranger Net Problem

[Sixxxela]

I tried pressing X, R, and Left of the D-Pad, but nothing pops up! When I click on the Manaphy Mission, I'm in Prof. Hastings lab, we talk to a while, and then the game saves and goes back to the main screen! Ugh! Help me :[

 

[Jordy San]

Then you have cleared this mission before, you can get only 1 Manaphy egg in each game.

 

[Sixxxela]

But I didn't, I got the game used, is that why?... D:

 

[Crystal Shaymin]

yes. The person who owned the game probably already did that mission.