C# Error: Argument out of range

Hey Guys I have this script and I have been getting this error since I tried to make my character aiming by click "Fire2": ArgumentOutOfRangeException: Argument is out of range. Parameter name: index

I can't locate the error I'm new on Unity3D :\

using UnityEngine; using System.Collections; using System.Collections.Generic;

public class PlayerController : MonoBehaviour { public CharacterController CharCont; public CharacterMotor CharMotor;

 //Holders for Weapons
 public Transform WalkAnimationHolder;
 public Transform JumpAnimationHolder;
 public Transform SwayAnimationHolder;
 public Transform RecoilAnimationHolder;
 public Transform ADSHolder;
 //walking states
 public WalkingState walkingstate = WalkingState.Idle;
 public float VelocityMagnitude;
 public float WalkSpeed;
 public float RunSpeed;
 public bool wasStanding;
 //weapon settings
 public WeaponInfo CurrentWeapon;
 public List<WeaponInfo> WeaponList = new List<WeaponInfo>();
 private float shoottime = 0;
 public Vector3 CurrentRecoil1;
 public Vector3 CurrentRecoil2;
 public Vector3 CurrentRecoil3;
 public Vector3 CurrentRecoil4;
 //Player Var
 public bool IsAiming;
 
 
 void Start()
 {
     CurrentWeapon = WeaponList[0];
 }
 
 public void Update()
 {
     ShootController();
 }
 
 public void FixedUpdate()
 {
     AnimationController();
     SwayController();
     SpeedController();
     VelocityMagnitude = CharCont.velocity.magnitude;
     RecoilController();
     ADSController();
 }
 
 //movement
 public void SpeedController()
 {
     if((Input.GetAxis("Horizontal") != 0 || Input.GetAxis("Vertical") != 0) && VelocityMagnitude > 0)
     {
         if(Input.GetButton("Run"))
         {
             walkingstate = WalkingState.Running;
             CharMotor.movement.maxForwardSpeed = RunSpeed;
             CharMotor.movement.maxSidewaysSpeed = RunSpeed;
             CharMotor.movement.maxBackwardsSpeed = RunSpeed / 2;
         }
         else
         {
             walkingstate = WalkingState.Walking;
             CharMotor.movement.maxForwardSpeed = WalkSpeed;
             CharMotor.movement.maxSidewaysSpeed = WalkSpeed;
             CharMotor.movement.maxBackwardsSpeed = WalkSpeed / 2;
         }
     }
     else
     {
         walkingstate = WalkingState.Idle;
     }
 }
 
 //Animations
 public void AnimationController()
 {
     if(wasStanding && !CharCont.isGrounded)
     {
         wasStanding = false;
         WalkAnimationHolder.animation.Play("animationSTANDINGJUMP");
     }
     else if (!wasStanding && CharCont.isGrounded)
     {
         wasStanding = true;
         WalkAnimationHolder.animation.Play("animationSTANDINGJUMPLANDING");
     }
     if(walkingstate == WalkingState.Running)
     {
         WalkAnimationHolder.animation["animationRUN"].speed = VelocityMagnitude / RunSpeed * 1.2f;
         WalkAnimationHolder.animation.CrossFade("animationRUN", 0.2f);
     }
     else if (walkingstate == WalkingState.Walking)
     {
         WalkAnimationHolder.animation["animationWALK"].speed = VelocityMagnitude / WalkSpeed * 1.2f;
         WalkAnimationHolder.animation.CrossFade("animationWALK", 0.2f);
     }
     else
     {
         WalkAnimationHolder.animation.CrossFade("animationIDLE", 0.2f);
     }
 }
 
 public void SwayController()
 {
     
 }
 
 //Shoot Station
 public void ShootController()
 {
     if(Input.GetButton("Fire1") && walkingstate != WalkingState.Running)
     {
         if(shoottime <= Time.time)    
         {
             shoottime = Time.time + CurrentWeapon.firerate;
             CurrentRecoil1 += new Vector3(CurrentWeapon.RecoilRotation.x, Random.Range(-CurrentWeapon.RecoilRotation.y, CurrentWeapon.RecoilRotation.y));
             CurrentRecoil3 += new Vector3(Random.Range(-CurrentWeapon.RecoilKickback.x, CurrentWeapon.RecoilKickback.x), Random.Range(-CurrentWeapon.RecoilKickback.y, CurrentWeapon.RecoilKickback.y), CurrentWeapon.RecoilKickback.z);
             RaycastHit hit;
             if(Physics.Raycast(CurrentWeapon.Spawnpoint.position, CurrentWeapon.Spawnpoint.TransformDirection(Vector3.forward), out hit, 250));
             {
                 hit.transform.SendMessageUpwards("GetBulletDamage", CurrentWeapon.name, SendMessageOptions.DontRequireReceiver);
             }
         }
     }
 }
 
 //weapon Recoil Station
 public void RecoilController()
 {
     CurrentRecoil1 = Vector3.Lerp(CurrentRecoil1, Vector3.zero, 0.1f);
     CurrentRecoil2 = Vector3.Lerp(CurrentRecoil2, CurrentRecoil1, 0.1f);
     CurrentRecoil3 = Vector3.Lerp(CurrentRecoil3, Vector3.zero, 0.1f);
     CurrentRecoil4 = Vector3.Lerp(CurrentRecoil4, CurrentRecoil3, 0.1f);
     RecoilAnimationHolder.localEulerAngles = CurrentRecoil2;
     RecoilAnimationHolder.localPosition = CurrentRecoil4;
 }
 
 //AimingDownSide
 public void ADSController()
 {
      if (Input.GetButton("Fire2"))
     {
         IsAiming = true;
         ADSHolder.localPosition = Vector3.Lerp(ADSHolder.localPosition, CurrentWeapon.Scopes[CurrentWeapon.CurrentScope].adsposition, 0.25f);
     }
     else
     {
         IsAiming = false;
         ADSHolder.localPosition = Vector3.Lerp(ADSHolder.localPosition, Vector3.zero, 0.25f);
     }
 }

}

public enum WalkingState { Idle, Walking, Running }

//Weapon Info [System.Serializable] public class WeaponInfo { public string name = "Weapon"; public float firerate = 0.1f; public Transform WeaponTransform; public Vector3 RecoilRotation; public Vector3 RecoilKickback; public Transform Spawnpoint; public int CurrentScope; public List Scopes = new List(); }

//Scope [System.Serializable] public class WeaponScope { public string name; public float fov; public Vector3 adsposition; public Transform scopetransform; }