question

I get the error "Object reference not set to an instance of an object."

   public void CreateCharacter()
    {
        GrantCharacterToUserRequest request = new GrantCharacterToUserRequest();
        request.CatalogVersion = "Consumables";
        request.ItemId = "Character Creation Token";
        request.CharacterName = name.text;
        PlayFabClientAPI.GrantCharacterToUser(request, result => 
        {
            Debug.Log("Succesfully created character ");
            Debug.Log("1 " + result.CharacterId);
            Debug.Log("2 " + result.CharacterType);
            Debug.Log("3 " + result.CustomData);
            Debug.Log("4 " + result.Request);
            Debug.Log("5 " + result.Result);


        }, error => 
        {
            Debug.Log(error.ErrorMessage);
        });
    }