Where is the exception located, where can I pinpoint where its giving me this exception??

Superfighters Deluxe v.1.3.7d - Unhandled Error
Status: Game, False, Game
GraphicsDeviceStatus: Normal

007591-01: Local: Player 'Unnamed' unequipped weapon of type 'Melee'
007590-03: Player disabled but not in any disabled state: status (System.Boolean[])
007589-03: Sound '' could not be found
007588-03: Can't find effect 'HIT'
007587-03: Can't find effect 'HIT'
007586-02: Player lower fire rank to 0
007585-03: Sound '' could not be found
007584-01: Local: Player 'Unnamed' unequipped weapon of type 'Thrown'
007583-03: Sound '' could not be found
007582-02: Player lower fire rank to 0

Error: Client update thread failure
> Exception:
Object reference not set to an instance of an object. 
> TargetSite:
SFD.Objects.ObjectWeaponItem DropWeaponItem(SFD.Weapons.WeaponItemType, Int32, Microsoft.Xna.Framework.Vector2, Boolean, Microsoft.Xna.Framework.Vector2, Boolean, DropWeaponItemSource)
> Source:
Superfighters Deluxe
> StackTrace:
   at SFD.Player.DropWeaponItem(WeaponItemType wpnToDrop, Int32 directionToDrop, Vector2 power, Boolean ignoreHolsteredModel, Vector2 dropOffset, Boolean handleCoverObject, DropWeaponItemSource dropWeaponItemSource)
   at SFD.Player.ReleaseThrow(Vector2 throwLocation, Vector2 throwLinearVelocity, Single angularVelocity, Boolean isThrowTOrDropF)
   at SFD.Player.ReleaseThrow()
   at SFD.Player.HandleAnimationMainEven(AnimationEvent animationEvent, Int32 subAnimation)
   at SFD.Player.Player_SecondSubAnimationFrameEvent(AnimationEvent animationEvent, Int32 subAnimation)
   at SFD.Player.SubAnimation1FrameEvent(AnimationEvent animationEvent, Int32 subAnimation)
   at SFD.SubAnimationPlayer.HandleEventsOnFrame()
   at SFD.SubAnimationPlayer.Update(Single ms)
   at SFD.Player.ProgressAnimation(Single ms)
   at SFD.Player.Update(Single ms, Single realMs)
   at SFD.GameWorld.Update(Single chunkMs, Single totalMs, Boolean isLast, Boolean isFirst)
   at SFD.Client.updateRun(Single chunkMs, Single totalMs, Boolean isLast, Boolean isFirst)
   at SFD.Client.<updateThreadRun>b__d(Int32 it, Single cst, Single t)
   at SFD.GameWorld.UpdateGameWorld(Single time, GameWorldUpdateValues updateValues, UpdateGameWorldRun updateGameWorldRun)
   at SFD.Client.updateThreadRun()
> FullException:
System.NullReferenceException: Object reference not set to an instance of an object.
   at SFD.Player.DropWeaponItem(WeaponItemType wpnToDrop, Int32 directionToDrop, Vector2 power, Boolean ignoreHolsteredModel, Vector2 dropOffset, Boolean handleCoverObject, DropWeaponItemSource dropWeaponItemSource)
   at SFD.Player.ReleaseThrow(Vector2 throwLocation, Vector2 throwLinearVelocity, Single angularVelocity, Boolean isThrowTOrDropF)
   at SFD.Player.ReleaseThrow()
   at SFD.Player.HandleAnimationMainEven(AnimationEvent animationEvent, Int32 subAnimation)
   at SFD.Player.Player_SecondSubAnimationFrameEvent(AnimationEvent animationEvent, Int32 subAnimation)
   at SFD.Player.SubAnimation1FrameEvent(AnimationEvent animationEvent, Int32 subAnimation)
   at SFD.SubAnimationPlayer.HandleEventsOnFrame()
   at SFD.SubAnimationPlayer.Update(Single ms)
   at SFD.Player.ProgressAnimation(Single ms)
   at SFD.Player.Update(Single ms, Single realMs)
   at SFD.GameWorld.Update(Single chunkMs, Single totalMs, Boolean isLast, Boolean isFirst)
   at SFD.Client.updateRun(Single chunkMs, Single totalMs, Boolean isLast, Boolean isFirst)
   at SFD.Client.<updateThreadRun>b__d(Int32 it, Single cst, Single t)
   at SFD.GameWorld.UpdateGameWorld(Single time, GameWorldUpdateValues updateValues, UpdateGameWorldRun updateGameWorldRun)
   at SFD.Client.updateThreadRun()


Additional data
arch:x86, archWOW:AMD64
OS:Microsoft Windows NT 6.2.9200.0
 
A crash report has been generated.
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