metroid other m save data lost after memory error from wii

[Lunatic1988]

hi guys im kinda new to this forums and dolphin so i played today metroid other m normally and then wehre i run on a save station the game told me wii memory error and then i restarted the game and my save file is gone was on the way to get somthing from adam after the ending xD can you maybe help me with this problem? ^^