The ancient scroll 5 became a werewolf and then a vampire. This is a bug, right? Find a solution.

It depends on what stage your vampire is in. The first and second one can go to Xueman Temple, where there is an altar (which can be found at any altar) to accept the blessing to get rid of the vampire state.

If not, go to the hotel owner in a city in the bottom left corner of the map (it seems to be Phocles), and there is an option, such as what's the news, and you can get rid of it by taking the task step by step

If you become a vampire, It's impossible for an NPC to pick up a task by hitting you when you see it. You have to secretly go to someone's house at night to suck the blood of the sleeping person, and you can get back to your state after a few breaths, until the NPC stops hitting you, and then you can do the task.