debug log of the turret bug

JobDriver threw exception in initAction for pawn Lucy driver=JobDriver_ReloadTurret (toilIndex=1) driver.job=(ReloadTurret (Job_709) A=Thing_Turret_M134MGs12716)
System.NullReferenceException: Object reference not set to an instance of an object
at CombatExtended.JobDriver_ReloadTurret+<>c__DisplayClass11_0.<MakeNewToils>b__2 () [0x000b2] in <c85ee57b7b734f869d65dc9f3925f39c>:0
at Verse.AI.JobDriver.TryActuallyStartNextToil () [0x001df] in <7b345446a85d4ed599f9c604ae61854b>:0
Verse.Log:Error(String, Boolean)
Verse.AI.JobUtility:TryStartErrorRecoverJob(Pawn, String, Exception, JobDriver)
Verse.AI.JobDriver:TryActuallyStartNextToil()
Verse.AI.JobDriver:ReadyForNextToil()
Verse.AI.JobDriver:Notify_PatherArrived()
Verse.AI.Pawn_PathFollower:PatherArrived()
Verse.AI.Pawn_PathFollower:StartPath(LocalTargetInfo, PathEndMode)
Verse.AI.<>c__DisplayClass4_0:<GotoCell>b__0()
Verse.AI.JobDriver:TryActuallyStartNextToil()
Verse.AI.JobDriver:ReadyForNextToil()
Verse.AI.Pawn_JobTracker:Verse.AI.Pawn_JobTracker.StartJob_Patch3(Pawn_JobTracker, Job, JobCondition, ThinkNode, Boolean, Boolean, ThinkTreeDef, Nullable`1, Boolean, Boolean)
Verse.AI.Pawn_JobTracker:TryFindAndStartJob()
Verse.AI.Pawn_JobTracker:Verse.AI.Pawn_JobTracker.EndCurrentJob_Patch2(Pawn_JobTracker, JobCondition, Boolean, Boolean)
Verse.AI.Pawn_JobTracker:JobTrackerTick()
Verse.Pawn:Verse.Pawn.Tick_Patch1(Pawn)
Verse.TickList:Tick()
Verse.TickManager:Verse.TickManager.DoSingleTick_Patch1(TickManager)
Verse.TickManager:TickManagerUpdate()
Verse.Game:Verse.Game.UpdatePlay_Patch2(Game)
Verse.Root_Play:Verse.Root_Play.Update_Patch1(Root_Play)