Outcast's Path

Stuck again.
1. In the quest, I need to steal an artifact from Altir. I can't hand it over to Warok, and without doing so, I can't steal it. Warok just stands there and doesn't accept the quest.
2. I need to get 200 Elven arrows for Tilir. I can't get them in the Elven workshop; it says I don't have enough reputation. Although, my reputation with the Elves is 100% (they haven't given me the stone yet), with Humans it's 76%, and with Orcs it's 46%.

1) You need to hand it over to Warok, not Altir, but to the scout. The artifact from Altir can be stolen after completing the quest with the 200 arrows.
2) Regarding the 200 arrows... Unfortunately, the script checks the "progress" of the quest based on the reputation with the Elves. If the reputation with the Elves is 100%, the quest is closed, and the check doesn't work. I didn't anticipate this. If it's not too much trouble, you can try enabling the console in the game (I provided instructions). With it, all errors can be easily fixed.