Bennimarru

So, after beating on Erika, I go back to Lavender Town so I can get the flute, but I stopped by the Pokemart to pick up some Great Balls. After leaving the mart, I can't move and the screen is off of my character. I tried logging out and back in again and then I shut the program down, waited an hour and logged back in, still nothing. I don't know if this has happened to anyone else or if there is a fix for it or not? I just wanted to express my concerns.