kulemag's invitation in inventory. but quest already completed

I have completed the Abyssal Power questline with a kulemag's invitation i got from a 2nd ligtless void. It picked the non quest variant first and I am now unable to open the map with the quest kulemag's invitation. It is also not possible to drop the quest item, so thats -1 inv space.




Refference ID: 2.337.577.210