Bug problem

Hey, Ive complete da cursed toof at flensberg so it appears a new mission, a ride circle with a sign, but when I "click" it doesnt works! Opens a small black square! Guys, you need to fix this because I cant play the other story quest, just the side quests.. Please!!!! Fix this!!! I love this game! I need your help! Thanks..

Maghandi about Warhammer Quest, v1.03