** SOLVED ** Key Doesn't Unlock Door!

[FurtherGames]

My key still doesn't unlock the door. I didn't copy the //Syntax mistake. because I didn't think it was needed.

Here is my HPS file:

void OnStart()
{
AddUseItemCallback("", "Key1", "masion_Door", "DoorUnlockKey", true);
}

void OnEnter()
{

}

void OnLeave()
{

}
void DoorUnlockKey(string &in asItem, string &in asEntity)
{
SetLevelDoorLocked("masion_Door", false);
PlayGuiSound("unlock.door.snt", 100);
RemoveItem("item");
}