Nicola game freeze.

[Samucaoo2]

When I went to talk to nicolas and when choosing the option "all right, bye" my game froze, a few seconds later I disconnected. when i came back i was in the pokecenter, i came back in the cave there was nobody inside, including nicola, so i went to get the christmas present and received only the basics, from those who did not do the quest. I returned to the cave and the nicola. I know I probably won't get the rest of the Christmas items, but my focus is more reporting to help.