[SOLVED] "Complete these Quests" challenge bugged

I am currently trying to complete the "Complete these Quests" challenge in Expedition. One of the quests I apparently did not complete yet is "Through Sacred Ground".
When I go to Act 2 the quest isn't visible and I don't see it as uncompleted.
Also when I try to talk with Yeena I don't have any uncollected rewards.
I also tried typing /recheck_achievements but that didn't work.

I hope you can help me as I want to complete the challenge and it would be really frustrating to start a new character just for that.

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Solution is to complete "The great white beast" quest before.