Help with error in code.

I have an error in the code and do not know what please help me. Thanks.

The error message is this:

NullReferenceException: Object reference not set to an instance of an object
CharacterGenerator.DisplayCreateButton () (at Assets/Scripts/Character Classes/CharacterGenerator.cs:102)
CharacterGenerator.OnGUI () (at Assets/Scripts/Character Classes/CharacterGenerator.cs:50)

private void DisplayCreateButton() {
		if(GUI.Button(new Rect(Screen.width / 2 - 50 , statStartingPos + (10 * LINE_HEIGHT), 100, LINE_HEIGHT), "Create")) {
			GameSettings gsScript = GameObject.Find("ObGameSettings").GetComponent<GameSettings>();
			gsScript.SaveCharacterData();
			Application.LoadLevel("Main");
		}
	}

Is the “ObGameSettings” in the scene?

Yes he is on the scene, but the error still lose

Does it have gamesettings attached?

Yes it is connected I can run my game when I press the + button to create my character it’s this message that I quoted. And I can not figure out what it is.