Script Crashes Custom Story -SOLVED-

[Shoop]

Code: (Select All)

////////////////////////////
// Run first time starting map
void OnStart()
{  
   AddUseItemCallback("", "key1", "castle_1", "UsedKeyOnDoor", true);
}

void UsedKeyOnDoor(string &in asItem, string &in asEntity)
{
    SetSwingDoorLocked("castle_1", false, true);
    PlaySoundAtEntity("", "unlock_door", "castle_1", 0, false);
    RemoveItem("key1");
}
    AddUseItemCallback("", "key2", "metal_1", "UsedKeyOnDoor", true);
}

void UsedKeyOnDoor(string &in asItem, string &in asEntity)
{
    SetSwingDoorLocked("metal_1", false, true);
    PlaySoundAtEntity("", "unlock_door", "metal_1", 0, false);
    RemoveItem("key2");
}
////////////////////////////
// Run when entering map
void OnEnter()
{

}

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

}

It is just a quick and simple one, but I have two keys for two different doors in this script. Why does it crash when I start, I probably did something wrong right? It does say something about the script when it crashes.
Thanks.