It might mean your internal battery is dead. To test to see if it is, you're going to have to start a new game and try to save. If the new save is corrupted, then it's definitely your battery. Check the sticky for more details.
All right so I tried starting a new game on Pokemon Silver, saved and quit, and I tried playing the next day and the only option I had was "new game" so I imagine it is my internal battery that is dead, anything I can do to fix it????