Ok, I have a big problem, I am with Bugenhagen in the Forgotten City, and I have given the key of the ancients to him, but when I try to enter the waterfall, the game freezes! What to do? I play on a PlayStation 2, if someone could help me I would be very thankful.

Try playing with another copy of the disc, and ascertain if the problem lies in your copy of the game or the console.

I have tried on my old Playstation X too, but it does not work. I'll try... another acquired copy of the disc.

The disk is the most likely suspect, I suggest finding one of those disk cleaners.

Thing is, I've searched on the problem, and there seems to be some people who has the exact same problem...

Yay! It worked! I used another version of the disc, and it worked! Thank you man! I've searched for an answer for days, and it was right in front of me all along!