Thawing Kurngalfberg - Can't remove item from inventory

Hey.
Well i got a lill problem..

i completed the quest Thawing Kurngalfberg [quest: 2056]
You have to obtain 3 things and then use them

i could use 2 of them and then the quest was complete (?)

and now i can't remove this item Triminos's Essence [item: 182204314] from my inventory..
The Quest ist complete,i logged into the character screen and restartet the full client,still can't remove it,cause it's a campagn item...i would be very nice if any GM could remove it from my inventory

Thanks

 

Yes, me too. plz help

 

The gm I think can't remove but I'd you don't want on you inventory put on warehouse

 

can you two give me the name of the character on which the item is? in damnason's case, I need both the character name and item code. Let me see if there's something that can be done about this.

EDIT: Include the server the character is in as well, forgot that detail x.x