Try to be more careful using an AR. Don't pile tons of codes on at the same time, and use your common scene not to mix codes that obviously won't match (ex. two codes that'll spawn an item in the first bag slot). Some codes are duds. Test them with utmost caution and by themselves (chances are, most duds don't do anything, but don't save after testing one). Also, I'd suggest not messing with the tools in this game too much. Hearing past stories, anyway.
They're fun devices if you know how to use them (I've personally never have a single bad thing happen to any game) but they can permanently break your game.
yeah AR's can cause a lot of trouble my cousins step son let me use his AR to get infinite money on Nintendogs no idea what i did wrong the file was replaced with another one with no dogs just all the money and i had to go by dogs again then i felt like