[Help] passive skill script error

#===============================================================================
#  Passive Skills, by Leon_Westbrooke
#  v. 1.0
#----------------------------------------------------------------------
#  Instructions:  Put below all default scripts, and above Main
# 
#  Features:  Creates passive skills that adds to the stats:
#    HP, SP, STR, DEX, AGI, INT, EVA, Atk, PDef, MDef
#   
#    Adds stats based on a percentage. (so, 100% will double that stat.)
#
#  To have a skill lower stats, make the number negative in the module.
#
#  Compatability:
#    There are no known clashes with other scripts.
#
#  Notes:
#    This script aliases the stats in Game_Actor, and rewrites the refresh
#    method in Window_Skill.
#===============================================================================


#===============================================================================
#  module Passive_Skills
#===============================================================================
module Passive_Skills
  #--------------------------------------------------------------------
  #  Passive_Skills = { skill_id => {'stat' => amount,..},..}
  #  stats:  'hp', 'sp', 'str', 'dex', 'agi', 'int', 'eva', 'atk', 'pdef', 'mdef'
  #--------------------------------------------------------------------
  Passive_Skills = {
  1 => {'hp' => 5}
  }
end
#===============================================================================
#  END module Passive_Skills
#===============================================================================


#===============================================================================
#  Game_Actor
#===============================================================================
class Game_Actor < Game_Battler
 
  attr_accessor :passive_hp
  attr_accessor :passive_sp
  attr_accessor :passive_str
  attr_accessor :passive_dex
  attr_accessor :passive_agi
  attr_accessor :passive_int
  attr_accessor :passive_eva
  attr_accessor :passive_atk
  attr_accessor :passive_pdef
  attr_accessor :passive_mdef
 
  alias leon_passiveskills_gameactor_setup setup
  alias leon_passiveskills_gameactor_basehp base_maxhp
  alias leon_passiveskills_gameactor_basesp base_maxsp
  alias leon_passiveskills_gameactor_basestr base_str
  alias leon_passiveskills_gameactor_basedex base_dex
  alias leon_passiveskills_gameactor_baseagi base_agi
  alias leon_passiveskills_gameactor_baseint base_int
  alias leon_passiveskills_gameactor_baseeva base_eva
  alias leon_passiveskills_gameactor_baseatk base_atk
  alias leon_passiveskills_gameactor_basepdef base_pdef
  alias leon_passiveskills_gameactor_basemdef base_mdef
 
  def setup(actor_id)
    @passive_hp = 0
    @passive_sp = 0
    @passive_str = 0
    @passive_dex = 0
    @passive_agi = 0
    @passive_int = 0
    @passive_eva = 0
    @passive_atk = 0
    @passive_pdef = 0
    @passive_mdef = 0
    leon_passiveskills_gameactor_setup(actor_id)
  end
 
  def passive_bonus
    ps = Passive_Skills
    hp = 0
    sp = 0
    str = 0
    dex = 0
    agi = 0
    int = 0
    eva = 0
    atk = 0
    pdef = 0
    mdef = 0
    for i in 0...@skills.size
      if ps::Passive_Skills.keys.include?(@skills[i])
        for j in 0...ps::Passive_Skills[@skills[i]].size
          case ps::Passive_Skills[@skills[i]].keys[j]
          when 'hp'
            hp += ps::Passive_Skills[@skills[i]]['hp']
          when 'sp'
            sp += ps::Passive_Skills[@skills[i]]['sp']
          when 'str'
            str += ps::Passive_Skills[@skills[i]]['str']
          when 'dex'
            dex += ps::Passive_Skills[@skills[i]]['dex']
          when 'agi'
            agi += ps::Passive_Skills[@skills[i]]['agi']
          when 'int'
            int += ps::Passive_Skills[@skills[i]]['int']
          when 'eva'
            eva += ps::Passive_Skills[@skills[i]]['eva']
          when 'atk'
            atk += ps::Passive_Skills[@skills[i]]['atk']
          when 'pdef'
            pdef += ps::Passive_Skills[@skills[i]]['pdef']
          when 'mdef'
            mdef += ps::Passive_Skills[@skills[i]]['mdef']
          end
        end
      end
    end
    @passive_hp = hp
    @passive_sp = sp
    @passive_str = str
    @passive_dex = dex
    @passive_agi = agi
    @passive_int = int
    @passive_eva = eva
    @passive_atk = atk
    @passive_pdef = pdef
    @passive_mdef = mdef
  end
 
  def base_maxhp
    ps = Passive_Skills
    n = leon_passiveskills_gameactor_basehp
    n = n + (n * @passive_hp * 0.01)
    passive_bonus
    return n
  end
 
  def base_maxsp
    ps = Passive_Skills
    n = leon_passiveskills_gameactor_basesp
    n = n + (n * @passive_sp * 0.01)
    return n
  end
 
  def base_str
    ps = Passive_Skills
    n = leon_passiveskills_gameactor_basestr
    n = n + (n * @passive_str * 0.01)
    return n
  end
 
  def base_dex
    ps = Passive_Skills
    n = leon_passiveskills_gameactor_basedex
    n = n + (n * @passive_dex * 0.01)
    return n
  end
 
  def base_agi
    ps = Passive_Skills
    n = leon_passiveskills_gameactor_baseagi
    n = n + (n * @passive_agi * 0.01)
    return n
  end
 
  def base_int
    ps = Passive_Skills
    n = leon_passiveskills_gameactor_baseint
    n = n + (n * @passive_int * 0.01)
    return n
  end
 
  def base_atk
    ps = Passive_Skills
    n = leon_passiveskills_gameactor_baseatk
    n = n + (n * @passive_atk * 0.01)
    return n
  end
 
  def base_pdef
    ps = Passive_Skills
    n = leon_passiveskills_gameactor_basepdef
    n = n + (n * @passive_pdef * 0.01)
    return n
  end
 
  def base_mdef
    ps = Passive_Skills
    n = leon_passiveskills_gameactor_basemdef
    n = n + (n * @passive_mdef * 0.01)
    return n
  end
end
#===============================================================================
#  END Game_Actor
#===============================================================================


#===============================================================================
#  Window_Skill
#===============================================================================
class Window_Skill
  def refresh
    if self.contents != nil
      self.contents.dispose
      self.contents = nil
    end
    @data = []
    for i in 0...@actor.skills.size
      skill = $data_skills[@actor.skills[i]]
      #-----------------------------------------------------------------
      #  Added 3 Lines right here:
      #  if $game_temp.in_battle
      #    ps = Passive_Skills
      #    unless ps::Passive_Skills.keys.include?(skill)
      # ----------------------------------------------------------------
      if $game_temp.in_battle
        ps = Passive_Skills
        unless ps::Passive_Skills.keys.include?(skill.id)
          if skill != nil
            @data.push(skill)
          end
      #-----------------------------------------------------------------
      # Added two 'end's right here.
      #-----------------------------------------------------------------
        end
      end
    end
    @item_max = @data.size
    if @item_max > 0
      self.contents = Bitmap.new(width - 32, row_max * 32)
      self.contents.font.name = $defaultfonttype  # "Skill" window font
      self.contents.font.size = $defaultfontsize
      for i in 0...@item_max
        draw_item(i)
      end
    end
  end
end
#===============================================================================
# End Window_Skill
#===============================================================================