Hey, I am trying to make the Main Camera rotate around an object but I keep on getting errors left and right and I don't know what to fix or do. Can you please look at my code and tell me what I need to do to fix this?

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

public class ThirdpersonCamera : MonoBehaviour { private const float Y_ANGLE_MIN = 0.0f; private const float Y_ANGLE_MAX = 50.0f;

 public Transform lookAt;
 public Transform camTransform;

 private ThirdpersonCamera cam;

 private float distance = 10.0f;
 private float currentX = 0.0f;
 private float currentY = 0.0f;
 private float sensivityX = 4.0f;
 private float sensivityY = 1.0f;

 private void Start()
 {
     camTransform = transform;
     cam = Camera.main; 
 }

 private void Update()
 {
     currentX += Input.GetAxis("Mouse X");
     currentY += Input.GetAxis("Mouse Y");

     currentY = Mathf.Clamp(currentY, Y_ANGLE_MIN, Y_ANGLE_MAX);
 }
 private void LateUpdate()
 {
     Vector3 dir = new Vector3(0,0,-distance);
     Quaternion rotation = Quaternion.Euler(currentY,currentX,0);
     camTransform.position = lookAt.position + rotation * dir;
     camTransform.LookAt(lookAt.position);

 }

}