A bug with the courtesan Nadia a whorehouse (Gothic 2)

Was a whorehouse and paid bromuro to remove Nadia. She went to the top and I came out of the whorehouse. On the quest I need to find out who's selling weed, and Nadia is at the bottom, the top is not, the line about removing the girls went missing from the dialogue with bamarom. What should I do to remove it??? Murder is not helping.