Cant Spawn my Player

I cant figure out whats wrong with this code I keep getting a null reference exception error but my player is referenced correctly maybe y'all can find what is wrong with this code.


public class PlayerSpawner : MonoBehaviour {

public enum SpawnState { Spawning, Waiting, Counting };

[System.Serializable]
public class Wave
{
public string name;

public int count;
public float rate;
}
private healthBar health;
public Wave[] waves;
private int nextWave = 0;
public int Recorder = 0;
public float timeBetweenWaves = 5f;
public float waveCountdown;
private float searchCountdown = 1f;
public GameObject[] spawnPoints;
public GameObject enemy;
public SpawnState state = SpawnState.Counting;

void Awake()
{
waveCountdown = timeBetweenWaves;
health = FindObjectOfType<healthBar>();
}

// Use this for initialization
void Start()
{


}

// Update is called once per frame
void Update()
{
if (state == SpawnState.Waiting)
{
if (!EnemyIsAlive())
{
WaveCompleted();
}
else
{
return;
}
}


if (waveCountdown <= 0)
{
if (state != SpawnState.Spawning && !GameObject.FindGameObjectWithTag("Player").activeInHierarchy)
{


StartCoroutine(SpawnWave(waves[nextWave]));


}
}
else
{
waveCountdown -= Time.deltaTime;
}
}

bool EnemyIsAlive()
{
searchCountdown -= Time.deltaTime;
if (searchCountdown <= 0f)
{
searchCountdown = 1f;

if (GameObject.FindGameObjectWithTag("Player") == null)
{
return false;
}
}

return true;
}

void WaveCompleted()
{
state = SpawnState.Counting;
waveCountdown = timeBetweenWaves;

if (nextWave + 1 > waves.Length - 1)
{
nextWave = 0;
print("All waves Complete");

}



else
{
nextWave++;
}

}



IEnumerator SpawnWave(Wave _wave)
{

state = SpawnState.Spawning;
for (int i = 0; i < _wave.count; i++)
{
SpawnEnemy();
Recorder= _wave.count;
yield return new WaitForSeconds(1f / _wave.rate);
}

if(_wave.count == 3)
{
_wave.count = 1;
}
state = SpawnState.Waiting;

yield break;

}

void SpawnEnemy()
{




//GameObject _sp = spawnPoints[Random.Range(0, spawnPoints.Length)];
Instantiate(enemy, transform.position, transform.rotation);
//Instantiate(Resources.Load("US_Ranger"), transform.position, transform.rotation);
}
}

 

First off, pleas use the Insert button to insert your code. Also, please put your full error log so we can see where the error is occurring.