camillelele

So I've always played a bunch of different games on NO$GBA with no problems at all. But I play MySims, MySims Kingdom, MySims Agents, etc. and I save the game and close NO$GBA. Later I run NO$GBA again, but when I load the game it says : "Your .sav file is corrupt. .Sav file will be deleted." Something like that (it's in the game). How can I save it with error, should I use a different emulator or something. I've tried downloading different roms from different sites, help please! ):