Changing a weapon gun into sword guy

hey hi all i wanted to change the guy in survival shooter into a girl who has sword but my code is not working since it gives error
MissingComponentException: There is no ‘LineRenderer’ attached to the “Player” game object, but a script is trying to access it.
You probably need to add a LineRenderer to the game object “Player”. Or your script needs to check if the component is attached before using it.
Player Shooting. Disable Effects () (at Assets/Scripts/Scripts/Player/Player Shooting.cs:49)
PlayerShooting.Update () (at Assets/Scripts/Scripts/Player/PlayerShooting.cs:42)
here is my code for player shooting
using UnityEngine;

public class PlayerShooting : MonoBehaviour
{
public int damagePerShot = 20;
public float timeBetweenBullets = 0.15f;
public float range = 100f;

float timer;
Ray shootRay = new Ray();
RaycastHit shootHit;
int shootableMask;
ParticleSystem gunParticles;
LineRenderer gunLine;
AudioSource gunAudio;
Light gunLight;
float effectsDisplayTime = 0.2f;

void Awake ()
{
    shootableMask = LayerMask.GetMask ("Shootable");
    gunParticles = GetComponent<ParticleSystem> ();
    gunLine = GetComponent <LineRenderer> ();
    gunAudio = GetComponent<AudioSource> ();
    gunLight = GetComponent<Light> ();
}

void Update ()
{
    timer += Time.deltaTime;

	if(Input.GetButton ("Fire1") && timer >= timeBetweenBullets && Time.timeScale != 0)
    {
        Shoot ();
    }

    if(timer >= timeBetweenBullets * effectsDisplayTime)
    {
        DisableEffects ();
    }
}

public void DisableEffects ()
{
    gunLine.enabled = false;
    gunLight.enabled = false;
}

void Shoot ()
{
    timer = 0f;

    gunAudio.Play ();

    gunLight.enabled = true;

    gunParticles.Stop ();
    gunParticles.Play ();

    gunLine.enabled = true;
    gunLine.startWidth = 0.02f;
    gunLine.SetPosition (0, transform.position);

    shootRay.origin = transform.position;
    shootRay.direction = transform.forward;

    if(Physics.Raycast (shootRay, out shootHit, range, shootableMask))
    {
        EnemyHealth enemyHealth = shootHit.collider.GetComponent <EnemyHealth> ();
        if(enemyHealth != null)
        {
            enemyHealth.TakeDamage (damagePerShot, shootHit.point);
        }
        gunLine.SetPosition (1, shootHit.point);
    }
    else
    {
        gunLine.SetPosition (1, shootRay.origin + shootRay.direction * range);
    }
}

}

Did you even read the error? Remove access to LineRenderer in the script if you don’t have it.