Error CS1525|Unexpected " { " Please Help. Urgent.

I've look through my code several times and I can't find anything wrong with my parsing or syntax, here it is, I'm grateful for your help.

 using UnityEngine;
 using UnityEngine.UI;
 using System.Collections;
 
 namespace CompleteProject
 {
     public class KeyManager : MonoBehaviour
     {
         public static int keys;        // The player's keys.
 
 
         Text text;                      // Reference to the Text component.
 
 
         void Awake ()
         {
             // Set up the reference.
             text = GetComponent <Text> ();
 
             // Reset the keys.
             keys = 0;
         }
 
 
         void Update ()
         {
             // Set the displayed text to be the word "Keys" followed by the Key value.
             text.text = "Keys: " + keys;
 
             // Check if 5 Keys have been picked up, then load next level.
             if (keys == 5)
             {
                 Application.LoadLevel (Application.loadedLevel + 1)
             }
 
         }
         // Check When the Player Picks up, Key.
         void OnTriggerEnter (Collider other)
         {
             if (other.gameObject.tag == "Keys") 
             {
                 keys += 1;
                 other.gameObject.SetActive (false);
             }
         }
     }
 }