What to Do After I Beat Battle Tower Once? (Pokemon Pearl)?

Question

I beat Battle Tower once in the single battle and team battle. I don't know what to do next! I talked to the people blocking the lake nearby and the people blocking the other pathway. They say "Have you visited Battle Tower yet?..." Yes! I HAVE visited Battle Tower, and I have no idea what to do next. Thx 4 Ur Help :)

Answer 1

Do it twice