How to unlock door with key?

[GSphoenix]

////////////////////////
//Run when Starting map
void OnStart()
{
AddUseItemCallback("", "OfficeKey", "mansion_1", "UsedKeyOnDoor", true);
}

void UsedKeyOnDoor(string &in asItem, string &in asEntity)
{
SetSwingDoorLocked("mansion_1", false, true);
PlaySoundAtEntity("", "unlock_door.snt", "mansion_1", 0.0f, false);
RemoveItem("OfficeKey");
AddDebugMessage("KeyOnDoor", false);
}

////////////////////////
//Run when Entering map
void OnEnter()
{

}


///////////////////////
//Run when Leaving map
void OnLeave()
{

}

If I want to use it on the door its says: "cant use this item this way".
maybee the names in the editor are wrong, but i dont no with one...?