Update the Data folder. Also you can use the Gospel of Prudency in your inventory to remove Blackscreen.
Viewing post in Black screen at a certain Place
Thanks for the big help.
Right now I defeated every bosses(Illfang, G'nobe, the "thing", Guardian in Hikari Tomb, Weissbore mayor, wrym tamer, Slime in the Sewer and some bosses in shinai forest) I guess. I'm finding the way to Thoedax(right?). And also Searching for Kalishka. Right now I bought the house and resting.