System.ArgumentNullException: Value cannot be null.
Parameter name: state
at xnaMugen.StateMachine.StateManager.RunState(State state, Boolean hitpause)
at xnaMugen.StateMachine.StateManager.RunCurrentStateLoop(Boolean hitpause)
at xnaMugen.StateMachine.StateManager.Run(Boolean hitpause)
at xnaMugen.Combat.Character.UpdateState()
at xnaMugen.Combat.EntityCollection.RunEntityUpdates(List`1 entities)
at xnaMugen.Combat.EntityCollection.Update(GameTime time)
at xnaMugen.Combat.FightEngine.Update(GameTime time)
at xnaMugen.Menus.CombatScreen.Update(GameTime gametime)
at xnaMugen.Mugen.Update(GameTime gameTime)
at Microsoft.Xna.Framework.Game.Tick()
at Microsoft.Xna.Framework.Game.HostIdle(Object sender, EventArgs e)
at Microsoft.Xna.Framework.GameHost.OnIdle()
at Microsoft.Xna.Framework.WindowsGameHost.ApplicationIdle(Object sender, EventArgs e)
at System.Windows.Forms.Application.ThreadContext.System.Windows.Forms.UnsafeNativeMethods.IMsoComponent.FDoIdle(Int32 grfidlef)
at System.Windows.Forms.Application.ComponentManager.System.Windows.Forms.UnsafeNativeMethods.IMsoComponentManager.FPushMessageLoop(Int32 dwComponentID, Int32 reason, Int32 pvLoopData)
at System.Windows.Forms.Application.ThreadContext.RunMessageLoopInner(Int32 reason, ApplicationContext context)
at System.Windows.Forms.Application.ThreadContext.RunMessageLoop(Int32 reason, ApplicationContext context)
at System.Windows.Forms.Application.Run(Form mainForm)
at Microsoft.Xna.Framework.WindowsGameHost.Run()
at Microsoft.Xna.Framework.Game.Run()
at xnaMugen.EntryPoint.Main()