NullReferenceException

Please help!

NullReferenceException: Object reference not set to an instance of an object RoomMultiplayerMenu.OnGUI () (at Assets/FPS Kit Version 2.0/_CustomAssets/Scripts/Network C#/RoomMultiplayerMenu.cs:107)

using UnityEngine; using System.Collections; using System.Collections.Generic; using System.Linq; using Random = UnityEngine.Random; using System;

public class RoomMultiplayerMenu : Photon.MonoBehaviour {

 public GUISkin guiSkin;
 public GameObject playerPrefab;
 public GameObject playerPrefab_t;
 public List spawnPoints;
 public List spawnPoints_t;
 public GUIStyle style;
 public Transform BombPlace;
 public string[] maps;
 

 
 [HideInInspector]
 public bool isPaused;
 public bool ct;
 public bool t;
 GameObject enableHelper;
 
 public int TScore;
 public int CTScore;
 

 
 
 ConnectMenu cm;
 bool playerList;
 Resolution[] resolutions;
 string[] QualityNames;
 int resolutionIndex = 3;
 Vector2 scroll;
 Vector2 scroll2;
 Vector2 scroll3;
 
 //Our player spawned
 GameObject Player;
 
 // Use this for initialization
 void Start () {
     cm = GetComponent();
     isPaused = true;
     resolutions = Screen.resolutions;
     resolutionIndex = (resolutions.Length-1)/2;
     QualityNames = QualitySettings.names;
     playerList = true;
     enableHelper = GameObject.FindWithTag("EnableHelper").gameObject;
     ct=false;
         t=false;
 }
 
 // Update is called once per frame
 void Update () {
     
     
     //fps = (int)timer.GetFps();
    
     //timer.Update();
     
     
     if(Input.GetKeyDown(KeyCode.Tab) && Player){
         isPaused = !isPaused;
     }
     /*if(!Player){
         isPaused = true;    
     }*/
     
     if(Input.GetKeyDown(KeyCode.F12)){
         Screen.fullScreen = !Screen.fullScreen;
         if(!Screen.fullScreen){
             Screen.SetResolution(resolutions[resolutionIndex].width, resolutions[resolutionIndex].height, true);
         }
     }
     
     if(isPaused){
         if(enableHelper.active == true){
             enableHelper.active = false;
         }    
         Screen.lockCursor = false;
     }else{
         if(enableHelper.active == false){
             enableHelper.active = true;
         }
         Screen.lockCursor = true;
     }
 }
 
     
 void OnGUI(){
      GUI.Label(new Rect(Screen.width-190, Screen.height-80, 190, 20), " Tab - pause menu", style);
     if(!isPaused)
         return;
     GUI.skin = guiSkin;
     
     GUI.color = new Color(1, 1, 1, 0.7f);
    
     if(isPaused){
         GUI.Window (0, new Rect (Screen.width/2 - 250, Screen.height/2 - 150, 500, 300), MainMenu, "Pause Menu | Room: " + PhotonNetwork.room.name);
         GUI.Window (1, new Rect (Screen.width/2-240, Screen.height/2 - 95, 150, 100), Resolutions, "Resolution");
         GUI.Window (2, new Rect (Screen.width/2-85, Screen.height/2 - 95, 150, 100), QualityWindow, "Quality");
     }
 
 }
 
 void MainMenu (int windowID) {  
     GUILayout.Space (10); 
     GUILayout.BeginHorizontal();
         GUILayout.Box(resolutions[resolutionIndex].width + " x " +  resolutions[resolutionIndex].height, GUILayout.Width(150), GUILayout.Height(25));
         
         GUILayout.Box(QualityNames[QualitySettings.GetQualityLevel ()],   GUILayout.Width(150), GUILayout.Height(25));
     
     
      GUILayout.Space (15); 
         GUILayout.BeginVertical();
             if(!Player){
         
         
         if(ct==true)
         {
             SpawnPlayer();
             t= false;
         }
         else if (t==true)
         {
             SpawnPlayer_t();
             ct = false;
         }
         
         
                 if(GUILayout.Button("Terorist")){
                     isPaused = false;
                     SpawnPlayer_t();
                     t= true;
         }

                             if(GUILayout.Button("CounterTerorist")){
                     isPaused = false;
                     SpawnPlayer();
             ct= true;

} if(GUILayout.Button("Clear Memory")){

                             ct=false;
             t=false;

}

             }else{
                 
         
         
         GUILayout.Space (10); 
         
                                                     if(GUILayout.Button("Clear Memory")){
                     
                     ct=false;
             t=false;

}

                 if(GUILayout.Button("Resume")){
                     isPaused = false;
                 }
             }
             if(GUILayout.Button("Leave Room")){
                 LeaveRoom();
         ct=false;
             t=false;
             }
         GUILayout.EndVertical();
     GUILayout.EndHorizontal();
     
     GUILayout.Space (55);
                 
     //GUILayout.Label("Objective: Have fun :D");
     GUILayout.BeginHorizontal();
         if(playerList){
             GUI.color = new Color(0, 20, 0, 0.6f);
         }else{
             GUI.color = Color.white;
         }
         if(GUILayout.Button("Player List", GUILayout.Width(150), GUILayout.Height(25))){
             playerList = true;
         }
         if(!playerList){
             GUI.color = new Color(0, 20, 0, 0.6f);
         }else{
             GUI.color = Color.white;
         }
         if(GUILayout.Button("Controls", GUILayout.Width(150), GUILayout.Height(25))){
             playerList = false;
         }
     GUILayout.EndHorizontal();
             
     GUILayout.Space (5);
     GUI.color = Color.white;
     scroll3 = GUILayout.BeginScrollView(scroll3, GUILayout.Width(480), GUILayout.Height(100));
         if(!playerList){
             //Show controls

             GUI.color = new Color(20, 20,0, 0.6f);
             GUILayout.Label("Tab - Pause Menu"); 
             GUILayout.Label("F12 - Fullscreen"); 
             GUILayout.Label("T - Chat / Enter - send"); 
             GUILayout.Label("C - crouch");
             GUILayout.Label("Left Ctrl - prone"); 
             GUILayout.Label("LMB - fire"); 
             GUILayout.Label("RMB - aim");
             GUILayout.Label("F - weapon pick up");
             GUILayout.Label("R - reload");
             GUILayout.Label("Left Shift - run");
             GUILayout.Label("Space - jump");
             GUILayout.Label("Q,E - weapon change");
             GUILayout.Label("While selected STW-25 press G for flashlight");

                 
         
         }else{
             //Show player list***
             GUI.color = new Color(1,1,1,0.8f);
             foreach(PhotonPlayer player in PhotonNetwork.playerList){
                 if(PhotonNetwork.player.name == player.name){
                     GUI.color = Color.yellow;
                 }else{
                     GUI.color = Color.white;
                 }
                 GUILayout.BeginHorizontal("box");{
                     GUILayout.Label(player.name, style);
                     if(PhotonNetwork.player.name == player.name){
                         GUILayout.FlexibleSpace();
                         GUILayout.Label("Ping: " + PhotonNetwork.GetPing().ToString(), style);
                     }
                     
                 
                 GUILayout.EndHorizontal();}
             }
         }
     GUILayout.EndScrollView();
 }
 
 void  Resolutions( int windowID){
     GUI.BringWindowToFront(windowID);
     GUILayout.Space (10);
     scroll = GUILayout.BeginScrollView(scroll, GUILayout.Width(140), GUILayout.Height(65));
     GUILayout.BeginVertical();
         for(int a = 0; a < resolutions.Length; a++){
             if(resolutions[a].width == Screen.width && resolutions[a].height == Screen.height){
                 GUI.color = new Color(0, 20, 20, 0.6f);
             }else{
                 GUI.color = new Color(20, 20, 20, 0.6f);
             }
             if(GUILayout.Button(resolutions[a].width + " x " + resolutions[a].height)){
                 resolutionIndex = a;
                 if(Screen.fullScreen){
                     Screen.SetResolution (resolutions[resolutionIndex].width,resolutions[resolutionIndex].height, true);    
                 }
             }
         }
     GUILayout.EndVertical();
     GUILayout.EndScrollView();
 }
 
 void QualityWindow(int windowID){
     GUI.BringWindowToFront(windowID);
     GUILayout.Space (10);
     scroll2 = GUILayout.BeginScrollView(scroll2, GUILayout.Width(140), GUILayout.Height(65));
     GUILayout.BeginVertical();
          for (var i = 0; i < QualityNames.Length; i++){
              if(QualityNames[i] == QualityNames[QualitySettings.GetQualityLevel ()]){
                  GUI.color = new Color(0, 20, 20, 0.6f);
              }else{
                  GUI.color = new Color(20, 20, 20, 0.6f);
              }
             if (GUILayout.Button (QualityNames[i]))
                 QualitySettings.SetQualityLevel (i, true);
         }
     GUILayout.EndVertical();
     GUILayout.EndScrollView();
 }
 
 void SpawnPlayer(){
     if(Player){
         Destroy(Player);    
     }
     enableHelper.active = true;
     //Spawn our player
     int temp;
     temp = Random.Range(0, spawnPoints.Count);
     Player = PhotonNetwork.Instantiate(playerPrefab.name, spawnPoints[temp].position, spawnPoints[temp].rotation, 0);
     Player.name = cm.playerName;
     transform.GetChild(0).gameObject.active = false;
 }
     void SpawnPlayer_t(){
     if(Player){
         Destroy(Player);
                     ct=false;
         
         t=true;
     }
     enableHelper.active = true;
     //Spawn our player
     int temp;
     temp = Random.Range(0, spawnPoints_t.Count);
     Player = PhotonNetwork.Instantiate(playerPrefab_t.name, spawnPoints_t[temp].position, spawnPoints_t[temp].rotation, 0);
     Player.name = cm.playerName;
     transform.GetChild(0).gameObject.active = false;

     
 }
 
 void LeaveRoom(){
     if(PhotonNetwork.connected){
         PhotonNetwork.RemoveAllBufferedMessages();
         PhotonNetwork.RemoveRPCs();
         cm.enabled = true;
         cm.connectingToRoom = true;
         cm.fadeDir = -1;
         PhotonNetwork.LeaveRoom();
         this.enabled = false;
         transform.GetChild(0).gameObject.active = true;
         isPaused = false;
         Player = null;
         t=true;
         ct=true;
     }
 }
 
 void OnDisconnectedFromPhoton(){    
     print ("Disconnected from Photon");
     //Something wrong with connection - go to main menu
     cm.enabled = true;
     cm.fadeDir = -1;
     transform.GetChild(0).gameObject.active = true;
     isPaused = false;
     Player = null;
     this.enabled = false;
     t=true;
     ct=true;
 }
 
 
 public void LoadLevel(string level)
 {
     Debug.Log("LoadLevel: " + level);
     PhotonNetwork.isMessageQueueRunning = false;
     Application.LoadLevel(level);
 }


 public void OnLevelWasLoaded(int level)
 {
     Debug.Log(name + " Level Loaded " + level);
     PhotonNetwork.isMessageQueueRunning = true;
 }
 

}