please help me

so in my game i was making a bolt movement system and its saying that there is a variable speed here's a pic

 

You will need to post your code here. And please, use code tags when posting your code so it will be a lot easier for someone to look at it.

 

here's a pic with tags

 

Why do I get the following errors?
CS1003, CS1513, CS1022
This is the script:
using System.Collections;
using System.Collections.Generic;
using UnityEngine;
public class RespawnLvl3 : MonoBehaviour;
{
// Start is called before the first frame update
void Start()
{
public Transform player;
public Vector3 spawnPosition;
}
// Update is called once per frame
void Update()
{
if(player.position.y > 10)
{
player.position = spawnPosition;
}
}
}

 

The error is self explanatory - the graph's Get Variable node can't find "speed" variable. The solution is to create the speed variable in Bolt's Variables window.