IndexOutOfRangeException

I don't know how to fix this problem. It won't let me start the game immediately which can be an issue. I have these two scripts. This one has the issue at line 67-

 public class BaseCharacter : MonoBehaviour {
     private string _name;
     private int _level;
     private uint _freeExp;
 
     private Attribute[] _primaryAttribute;
     private Vital[] _vital;
     private Skill[] _skill;
 
     public void Awake()
     {
         _name = string.Empty;
         _level = 0;
         _freeExp = 0;
 
         _primaryAttribute = new Attribute[Enum.GetValues(typeof(AttributeName)).Length];
         _vital = new Vital[Enum.GetValues(typeof(VitalName)).Length];
         _skill = new Skill[Enum.GetValues(typeof(SkillName)).Length];
 
         SetupPrimaryAttributes ();
         SetupVitals ();
         SetupSkills ();
     }
     
     public string Name {
         get{ return _name; }
         set{ _name = value; }
     }
 
     public int Level {
         get{ return _level; }
         set{ _level = value; }
     }
 
     public uint FreeExp {
         get{ return _freeExp; }
         set{ _freeExp = value; }
     }
     
     public void AddExp(uint exp) {
         _freeExp += FreeExp;
 
         CalculateLevel ();
     }
 
     public void CalculateLevel() {
     }
 
     private void SetupPrimaryAttributes(){
         for (int cnt = 0; cnt < _primaryAttribute.Length; cnt++) {
                         _primaryAttribute [cnt] = new Attribute ();
                 }
     }
 
     private void SetupVitals() {
         for (int cnt = 0; cnt < _vital.Length; cnt++) {
             _primaryAttribute [cnt] = new Attribute ();
         }
     }
 
     private void SetupSkills() {
         for (int cnt = 0; cnt < _skill.Length; cnt++) {
             _primaryAttribute [cnt] = new Attribute ();
         }
     }
 
     public Attribute GetPrimaryAttribute(int index){
                 return _primaryAttribute [index];
         }
 
     public Vital GetVital(int index){
         return _vital [index];
     }
 
     public Skill GetSkill(int index){
         return _skill [index];
     }
 
     private void SetupVitalModifiers() {
         //health
         ModifyingAttribute healthModifier = new ModifyingAttribute();
         healthModifier.atttribute = GetPrimaryAttribute((int)AttributeName.Constitution);
         healthModifier.ratio = .5f;
 
         GetVital ((int)VitalName.Health).AddModifier(healthModifier);
 
         //stamina
 
         ModifyingAttribute staminaModifier = new ModifyingAttribute();
         staminaModifier.atttribute = GetPrimaryAttribute((int)AttributeName.Constitution);
         staminaModifier.ratio = 1;
         
         GetVital ((int)VitalName.Stamina).AddModifier(staminaModifier);
 
         //mana
         ModifyingAttribute manaModifier = new ModifyingAttribute();
         manaModifier.atttribute = GetPrimaryAttribute((int)AttributeName.Willpower);
         manaModifier.ratio = 1;
         
         GetVital ((int)VitalName.Mana).AddModifier(manaModifier);
         }
 
     private void SetupSkillModifiers(){
         //Attack 
         ModifyingAttribute AttackModifier1 = new ModifyingAttribute ();
         ModifyingAttribute AttackModifier2 = new ModifyingAttribute ();
 
         AttackModifier1.atttribute = GetPrimaryAttribute ((int)AttributeName.Authority);
         AttackModifier1.ratio = .33f;
 
         AttackModifier2.atttribute = GetPrimaryAttribute ((int)AttributeName.Willpower);
         AttackModifier2.ratio = .33f;
 
         GetSkill ((int)SkillName.Attack).AddModifier (AttackModifier1);
         GetSkill ((int)SkillName.Attack).AddModifier (AttackModifier2);
 
         //Defense
         ModifyingAttribute DefenseModifier1 = new ModifyingAttribute ();
         ModifyingAttribute DefenseModifier2 = new ModifyingAttribute ();
         
         DefenseModifier1.atttribute = GetPrimaryAttribute ((int)AttributeName.Durability);
         DefenseModifier1.ratio = .33f;
         
         DefenseModifier2.atttribute = GetPrimaryAttribute ((int)AttributeName.Speed);
         DefenseModifier2.ratio = .33f;
         
         GetSkill ((int)SkillName.Defense).AddModifier (DefenseModifier1);
         GetSkill ((int)SkillName.Defense).AddModifier (DefenseModifier2);
 
         //Magic
 
         ModifyingAttribute MagicModifier1 = new ModifyingAttribute ();
         ModifyingAttribute MagicModifier2 = new ModifyingAttribute ();
         
         MagicModifier1.atttribute = GetPrimaryAttribute ((int)AttributeName.Spirit);
         MagicModifier1.ratio = .33f;
         
         MagicModifier2.atttribute = GetPrimaryAttribute ((int)AttributeName.Concentration);
         MagicModifier2.ratio = .33f;
         
         GetSkill ((int)SkillName.Magic).AddModifier (MagicModifier1);
         GetSkill ((int)SkillName.Magic).AddModifier (MagicModifier2);
 
         //Archery
 
         ModifyingAttribute ArcheryModifier1 = new ModifyingAttribute ();
         ModifyingAttribute ArcheryModifier2 = new ModifyingAttribute ();
         
         ArcheryModifier1.atttribute = GetPrimaryAttribute ((int)AttributeName.Concentration);
         ArcheryModifier1.ratio = .33f;
         
         ArcheryModifier2.atttribute = GetPrimaryAttribute ((int)AttributeName.Speed);
         ArcheryModifier2.ratio = .33f;
         
         GetSkill ((int)SkillName.Archery).AddModifier (ArcheryModifier1);
         GetSkill ((int)SkillName.Archery).AddModifier (ArcheryModifier2);
 
         }
     public void StatUpdate(){
                 for (int cnt = 0; cnt < _vital.Length; cnt++)
                         _vital [cnt].Update ();
 
                 for (int cnt = 0; cnt < _skill.Length; cnt++)
                         _skill [cnt].Update ();
         }
 }

and when I created this script, I started getting the error-

 using UnityEngine;
 using System.Collections;
 using System;
 
 public class CharacterGenerator : MonoBehaviour {
     private PlayerCharacter _toon;
 
     //Use this for initialization
     void Start() {
         _toon = new PlayerCharacter ();
         _toon.Awake ();
     }
 
     //Update is called once per frame
     void Update() {
 
     }
 
     void OnGUI() {
         GUI.Label(new Rect(10, 10, 50, 25), "Name:");
         _toon.Name = GUI.TextArea (new Rect(65, 10, 100, 25), _toon.Name);
 
         for(int cnt = 0; cnt < Enum.GetValues(typeof(AttributeName)).Length; cnt++) {
             GUI.Label (new Rect(10, 40, 100, 25), ((AttributeName)cnt).ToString () );
 
         }
     }
 }

I hope someone can help me! Thanks!