My R4 reset...!

Hello everybody I was just wondering has this ever happened to anyone else before. I was time travelling (yes im a cheater :p) and when I replaced my R4 into my DS and clicked on The Sims, it just completely reset. I had to start a new game. Every other game on my R4 was reset too, including pokemon diamond, mario n sonic olympic games...DRAWN TO LIFE!! if this has happened to you, could you please help me? ??? ???

So, only your save files were gone?

no the games were still there but all the data on them diffapeared...