Auto Fade when touches GameObject

I have a script that once made the screen fade in red and switched to another scene. After i upgraded the project to unity 5, instead of fading in red, it just instantly shows a solid pink screen for a sec, then changed to the scene. How do i fix this? i have Unity 5.1.2f1

Heres the script

using UnityEngine; using System.Collections;

public class AutoFade : MonoBehaviour { private static AutoFade m_Instance = null; private Material m_Material = null; private string m_LevelName = ""; private int m_LevelIndex = 0; private bool m_Fading = false;

 private static AutoFade Instance
 {
     get
     {
         if (m_Instance == null)
         {
             m_Instance = (new GameObject("AutoFade")).AddComponent<AutoFade>();
         }
         return m_Instance;
     }
 }
 public static bool Fading
 {
     get { return Instance.m_Fading; }
 }
 
 private void Awake()
 {
     DontDestroyOnLoad(this);
     m_Instance = this;
     m_Material = new Material("Shader \"Plane/No zTest\" { SubShader { Pass { Blend SrcAlpha OneMinusSrcAlpha ZWrite Off Cull Off Fog { Mode Off } BindChannels { Bind \"Color\",color } } } }");
 }
 
 private void DrawQuad(Color aColor,float aAlpha)
 {
     aColor.a = aAlpha;
     m_Material.SetPass(0);
     GL.PushMatrix();
     GL.LoadOrtho();
     GL.Begin(GL.QUADS);
     GL.Color(aColor);   // moved here, needs to be inside begin/end
     GL.Vertex3(0, 0, -1);
     GL.Vertex3(0, 1, -1);
     GL.Vertex3(1, 1, -1);
     GL.Vertex3(1, 0, -1);
     GL.End();
     GL.PopMatrix();
 }
 
 private IEnumerator Fade(float aFadeOutTime, float aFadeInTime, Color aColor)
 {
     float t = 0.0f;
     while (t<1.0f)
     {
         yield return new WaitForEndOfFrame();
         t = Mathf.Clamp01(t + Time.deltaTime / aFadeOutTime);
         DrawQuad(aColor,t);
     }
     if (m_LevelName != "")
         Application.LoadLevel(m_LevelName);
     else
         Application.LoadLevel(m_LevelIndex);
     while (t>0.0f)
     {
         yield return new WaitForEndOfFrame();
         t = Mathf.Clamp01(t - Time.deltaTime / aFadeInTime);
         DrawQuad(aColor,t);
     }
     m_Fading = false;
 }
 private void StartFade(float aFadeOutTime, float aFadeInTime, Color aColor)
 {
     m_Fading = true;
     StartCoroutine(Fade(aFadeOutTime, aFadeInTime, aColor));
 }
 
 public static void LoadLevel(string aLevelName,float aFadeOutTime, float aFadeInTime, Color aColor)
 {
     if (Fading) return;
     Instance.m_LevelName = aLevelName;
     Instance.StartFade(aFadeOutTime, aFadeInTime, aColor);
 }
 public static void LoadLevel(int aLevelIndex,float aFadeOutTime, float aFadeInTime, Color aColor)
 {
     if (Fading) return;
     Instance.m_LevelName = "";
     Instance.m_LevelIndex = aLevelIndex;
     Instance.StartFade(aFadeOutTime, aFadeInTime, aColor);
 }

}

Heres the script that activates that script

using UnityEngine; using System.Collections;

public class LoadLevel : MonoBehaviour {

void OnTriggerEnter(Collider other) { AutoFade.LoadLevel("Main Menu" ,1,1,Color.red); } }