Walkthrough (The Legend of Tianding)

I can't find wine in the sewers, I've already gone there 10 times, but it still doesn't fall out, although I hit it with the help of bandits' bonds, it still doesn't fall out, maybe there is some kind of stratum who knocked it out?

I can’t go there at all (into the sewers) to complete additional quests, tell me how to do it! Wolfik369