Guild Wars 2

Thanks for your help guys, I tried it again today and It worked fine this time

Can anybody help me because I’m having problems in my Personel story. Ihave reached the Brute Force part but i’m unable to complete the last part defeat the undead attackes. Iv killed them all and no more are attacking, i’v been waiting at least half an hour and searched all of the instant area. dont know what to do now