OpenRA Error

Red Alert Mod at Version release-20161019
on map a6ac533684db83d4fc880d759020020c725ad9aa (Invation Islands by StormWing0).
Date: 2016-12-22 19:18:38Z
Operating System: Windows (Microsoft Windows NT 6.1.7601 Service Pack 1)
Runtime Version: .NET CLR 4.0.30319.42000
Exception of type `System.InvalidOperationException`: Attempting to query the position of an invalid Target
   at OpenRA.Traits.Target.get_CenterPosition()
   at OpenRA.Mods.Common.Traits.AttackBomber.Tick(Actor self)
   at OpenRA.World.<Tick>m__3(TraitPair`1 x)
   at OpenRA.WorldUtils.DoTimed[T](IEnumerable`1 e, Action`1 a, String text)
   at OpenRA.World.Tick()
   at OpenRA.Game.InnerLogicTick(OrderManager orderManager)
   at OpenRA.Game.LogicTick()
   at OpenRA.Game.Loop()
   at OpenRA.Game.Run()
   at OpenRA.Program.Run(String[] args)
   at OpenRA.Program.Main(String[] args)