A mages weapon

[bence0307]

Wowhead quest link: https://www.wowhead.com/quest=41085/a-mages-weapon
WoW Freakz quest link: https://www.wow-freakz.com/quest_helper.php?quest=41085&name=a-mage-s-weapon
Bug description: So my problem is that I cannot re-take this quest. I did not complete it. I did not abandon it. I had to go somewhere so I teleported back to Dalaran. When I logged back in the quest is gone, everything is gone for the quest. I cannot go and redo it because there is no quest markers anywhere.
Please help!
Proof: https://imgur.com/a/kANnZZz

Can you kindly help me so I can take my artifact weapon quest again?

Thank you