Warrior quest for berserker stance is bugged

Hello, it has been 3 days that i have tried contacting a GM regarding this issue, but i can't seem to get help so i decided to post on the forums to try and get help. There is a quest called The Affray that has to be completed in order to get your Berserker stance as a warrior, but the problem is that the quest is bugged. You have to stand in some kind circle and wait until mobs spawn, kill them and the final mob will spawn and then kill him to have the quest completed. BUT nothing spawn when you stand on the circle and there is no other way to complete it and so we cannot get our Berserker stance. This sucks alot because I cannot use half of my spells because I dont have the stance . PLEASE Help!

worst part is there is no any info about it. How long it wont work, or what to do. At least could be nice and warn players about non-working class before they level high levels.

Yeah there is nothing. It is very frustrating