2 Script error

[Hellday]

Like this :

void OnStart()
{

SetEntityPlayerInteractCallback("lantern_1", "Spawn_Monster", true);

}

void Spawn_Monster(string &in entity)
{

SetEntityActive("servant_grunt_1", true);
}

void UseKey(string &in asItem, string &in asEntity)
{
SetSwingDoorLocked(asEntity, false, true);
AddUseItemCallback("useexit", "key_1", "coffre", "UseKey",true);
RemoveItem(asItem);
}
?
Thanks their is no crash but my ket doesn't works