There's an issue with this script I can't find

 using UnityEngine;
 using System.Collections;
 using UnityEngine.UI;
 
 public class SetPrice : MonoBehaviour {
 
     public Text me;
     Tower[] towers;
     Tower selected = null;
     int cost = 75;
 
     // Use this for initialization
     void Awake ()
     {
         
     }
     
     // Update is called once per frame
     void Update ()
     {
         towers = GameObject.FindObjectsOfType<Tower>();
 
         selected = null;
         foreach (Tower t in towers) 
         {
             if (t.selected)
             {
                 selected = t;
             }
         }

 
         if(selected != null)
         {
             cost = selected.money;
         }
         else
         {
             cost = 0;
         }
 
         Debug.Log(me.name);
 
     }
 }

I have this script attached to a game object in my game. In the inspector the public Text is set, and the debug.log at the bottom prints out the name of the object. However, I'm getting a null reference at the Debug.Log(me.name); line. I can't figure this out, and I've been trying for hours, please help.