i have a few errors in my scrip like this one CS0101 please help me

Unity Engine
1

i have 3 error in my script that i will list bellow with the code:

Assets\scripts\animationStateController.cs(5,14): error CS0101: The namespace ‘’ already contains a definition for ‘animationStateController’

Assets\scripts\animationStateController.cs(12,10): error CS0111: Type ‘animationStateController’ already defines a member called ‘Start’ with the same parameter types

Assets\scripts\animationStateController.cs(20,10): error CS0111: Type ‘animationStateController’ already defines a member called ‘Update’ with the same parameter types

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

public class animationStateController : MonoBehaviour
{
    Animator animator;
    int isWalkingHash;
    int isRunningHash;

    // Start is called before the first frame update
    void Start()
    {
        animator = GetComponent<Animator>();
        isWalkingHash = Animator.StringToHash("isWalking");
        isRunningHash = Animator.StringToHash("isRunning");
    }

    // Update is called once per frame
    void Update()
    {
        bool isRunning = animator.GetBool(isRunningHash);
        bool isWalking = animator.GetBool(isWalkingHash);
        bool forwardPressed = Input.GetKey("w");
        bool runPressed = Input.GetKey("left shift");

        if (!isWalking && forwardPressed)
        {
            animator.SetBool(isWalkingHash, true);
        }

        if (isWalking && !forwardPressed)
        {
            animator.SetBool(isWalkingHash, false);
        }

        if (!isrunning && (forwardPressed && runPressed))
        {
            animator.SetBool(isRunningHash, true);
        }

        if (isrunning(!forwardPressed || !runPressed))
        {
            animator.SetBool(isRunningHash, false);
        }
    }
}

[code]
2

Do you have that same script twice?