Why can't I use another class dictionary?

Question

C++ / C#

here i have a class

public class InfoTest : MonoBehaviour{
  public Dictionary<string, string> ArrayInfo = new Dictionary<string, string>();
  public static InfoTest instance;
  private void Awake(){
    instance = this;
    ArrayInfo.Add("Test1", "..........................");
    ArrayInfo.Add("Test2", "..........................");
...................

And tryna get it in another class

private void Test(){
    foreach(KeyValuePair<string, string> kv in InfoTest.instance.ArrayInfo){
..........................

well i got a mistake

NullReferenceException: Object reference not set to an instance of an object

What is wrong?

Answer 1

most likely instance == null