[XY] Need help x y glitch :(

[Phijkchu]

So i was doing a wonderlocke and i got to Clemont's gym and on the 3rd floor after beating Ampharos i went up and before i did the 4th floors quiz i went to the 1st floor and went to the pokecenter and went back. I go up the elevator and Bonnie is not there and the people at the 3 doors say i got the question wrong and i can't repeat the quiz or anything. I can't even go on the other floors only the 4th and the 1st floor plz help