Hello,
the before mentionend quest is buggy at the moment. The Troll who should summon the elemtal is stuck in the Shaman Quest where he summons a totem. I'm a warrior and he is still stuck on the shaman quest. I also dont wanna skip the Quest since it rewards me with basically one of the best axes for my level.
Abondoning the Quest and restarting it also doesnt fix it.