Save file deleted :( ?

[Huntero]

Hi

I just started yesterday to play MH3rd with a friend.When I went to the online guild hall the game stands still and I restarted the emulator.Right after that,in the Continue
screen I got this message:

"Monster Hunter Portable 3rd" game data not found. Please insert the Memory Stick Duo~B10 containing the character data.In order to receive bonuses from "MHP2nd G" and "MH Diary: Pokapoka Airu Village" when starting
a New game.

This even happened with save states after we made a new character I really hope somebody can help us.

Thanks in advance