ScreenPointToRay(Input.mouseposition) throws nullreferenceexeption

Hello, in my code here:

 using UnityEngine;
 using System.Collections;
 
 public class rotatetomouse : MonoBehaviour {
     
     public float speed = 10;
     
     // Update is called once per frame
     void Update () {
         
         Plane playerPlane = new Plane(Vector3.up, transform.position);
         
         Ray ray = Camera.current.ScreenPointToRay(Input.mousePosition);
         float hitdist = 0;
         if(playerPlane.Raycast(ray, out hitdist)){
             Vector3 targetPoint = ray.GetPoint(hitdist);
             
             Quaternion targetRotation = Quaternion.LookRotation(targetPoint - transform.position);
             
             transform.rotation = Quaternion.Slerp(transform.rotation, targetRotation, speed * Time.deltaTime);
         }
         
     }
 }

line 13: Ray ray = Camera.current.ScreenPointToRay(Input.mousePosition); throws nullreferenceexeptions about 1/3 of the time

this is the error

 NullReferenceException
 UnityEngine.Camera.ScreenPointToRay (Vector3 position) (at C:/BuildAgent/work/7535de4ca26c26ac/Runtime/ExportGenerated/Editor/UnityEngineCamera.cs:376)
 rotatetomouse.Update () (at Assets/scripts/rotatetomouse.cs:13)

i personally have no idea what would be causing this, since it isnt doing it all the time i have googled around a bit for the problem but everybody else that was getting errors in this kind of statement was replaceing Camera.current.ScreenPointToRay(Input.mousePosition); with Camera.main.ScreenPointToRay(Input.mousePosition); and they didnt have a "MainCamera" in their scene