Guild Wars 2

Journey to the Lost City of Rata Novus.

After killing a large spider type monster, I have to talk to an NPC The Magister who is fine
and then I have to talk to another NPC Braham Eirsson , who has a green star over his head, but he wont talk, and I dont know what to do next.

I am currently having this precise bug as well. The chak nearby are unkillable (regen as soon as you hit). Braham says nothing and has no interaction possibility.

The chak in the pit regen if you attack from too far away. You need to move into the pit to actually kill them. This can be done solo, but requires time.

As for the other bug, don’t know. I did have the problem that after Braham there was no follow up showing where to go next. Nit untill I backtracked that I found the rest of my trouppe and the instance completed.