New To Scripting

[The chaser]

It's:

void OnStart()
{
AddUseItemCallback("", "FrontDoorKey", "Front_door", "UsedKeyOnDoor", true);
}

void UsedKeyOnDoor(string &in asItem, string &in asEntity)
{
PlaySoundAtEntity("", "pick_key", "FrontDoorKey", 0, false);
SetSwingDoorLocked("Front_door", false, true);
PlaySoundAtEntity("", "unlock_door", "Front_door", 0, false);
RemoveItem("FrontDoorKey");
}



You had a few more innecessary things