Ensuring id is defined before trying to hook the target

scenes/ui/waila.gd

@@ -30,6 +30,7 @@ func get_target() -> Block:
 
 func hook_target(id: String) -> void:
 	if not Globals.enable_waila: return
+	if not id: return
 
 	var item: ItemResource = DBItems.data[id]
 	name_label.text = item.name + " (" + id + ")"