Ok, so i killed an NPC, which later turns out to be vital for the mod story to continue. The NPC corpse is gone so no resurrect will help me. I loaded a previous save and found out its called qwindthorp by the console, and i also found a placeatme,number,coordinates command, but it doesnt do me any good.
I use getpos x/ getpos y commands to get my coordinates, use the placeatme command on the proper coordinates but i get an error saying that the destination is wrong or something.

Can anyone help me?

Are you sure you're using the command correctly? It should be like this:

placeatpc "qwindthorp" 1,1,1

That should create a copy of the npc right on top of the player. Note that it is "placeatPC". I think placeatme is used in oblivion.

Тhat worked, thanks. You spared me alot of grief.