I've got a problem with Mario Tennis Open 3DS. I was playing the game in online mode few weeks ago. Everything was ok until the battery died during saving. Since then my 3DS has been showing me the message mentioned in the tittle. I post a video below to make it a little bit clearer. http://www.youtube.com/watch?v=J4AGgjxMjVc I also tried resetting save data with A,B,X,Y combination. But itdidn't help and the message is still the same. Does anyone know how to solve this problem?