Damian Post Game Glitch

Damian beat me after I caught Darkrai, and I got sent back to the pokecenter. When I came back I glitched into the wall during the cutscene. And once I beat Damian i was still stuck there. I retrieved an old save to get out of the situation, but when I go back it happens again. What should I do?

OH, this happened to me, whatcha gotta do is use the dexnav battle function until you black out and you go to a center!