My DSI freezes when playing Cooking Mama 2?

[looshikaos]

I go to play Cooking Mama 2, on my DSi, and it freezes. It goes all white, & my DSI won't "restart". I have to turn it off, and then turn it back on. It does this all the time, but my other games on my R4 work fine. I've re-downloaded it from different places, and put it back onto my R4, but it still has the same problem. What's going on with my DSi? Thanks in advance.