[Scripting Question] Pokedex in Pokegear

[MajikkuMagic]

There was a guide posted but I guess with the changes to 17.2 its not updated to reflect them. When I try to get it, it throws error codes.

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Pokemon Essentials
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[Pokémon Essentials version 17.2]

Exception: NoMethodError

Message: undefined method `[]' for nil:NilClass

PScreen_Pokegear:152:in `pbStartScreen'

PScreen_Pokegear:132:in `loop'

PScreen_Pokegear:174:in `pbStartScreen'

PScreen_PauseMenu:173:in `pbStartPokemonMenu'

PScreen_PauseMenu:170:in `pbFadeOutIn'

PScreen_PauseMenu:170:in `pbStartPokemonMenu'

PScreen_PauseMenu:141:in `loop'

PScreen_PauseMenu:244:in `pbStartPokemonMenu'

Scene_Map:127:in `call_menu'

Scene_Map:213:in `update'

The Script its referencing looks like this:

lass PokemonPokegearScreen
  def initialize(scene)
    @scene = scene
  end

  def pbStartScreen
    commands = []
    cmdMap     = -1
    cmdPhone   = -1
    cmdJukebox = -1
    cmdPokedex = -1
    commands[cmdMap = commands.length]     = ["map",_INTL("Map")]
    if $PokemonGlobal.phoneNumbers && $PokemonGlobal.phoneNumbers.length>0
      commands[cmdPhone = commands.length] = ["phone",_INTL("Phone")]
    end
    commands[cmdJukebox = commands.length] = ["jukebox",_INTL("Jukebox")]
    commands[cmdPokedex = commands.length] = ["pokedex",_INTL("Pokedex")]
    @scene.pbStartScene(commands)
    loop do
      cmd = @scene.pbScene
      if cmd<0
        pbPlayCancelSE
        break
      elsif cmdMap>=0 && cmd==cmdMap
        pbPlayDecisionSE
        pbShowMap(-1,false)
      elsif cmdPhone>=0 && cmd==cmdPhone
        pbPlayDecisionSE
        pbFadeOutIn(99999){
          PokemonPhoneScene.new.start
        }
      elsif cmdJukebox>=0 && cmd==cmdJukebox
        pbPlayDecisionSE
        pbFadeOutIn(99999){
          scene = PokemonJukebox_Scene.new
          screen = PokemonJukeboxScreen.new(scene)
          screen.pbStartScreen
        }
        elsif cmdPokedex>=0 && @sprites["command_window"].index==cmdPokedex # I copied for menu script
        pbPlayDecisionSE()
        if DEXDEPENDSONLOCATION
          pbFadeOutIn(99999) {
             scene=PokemonPokedexScene.new
             screen=PokemonPokedex.new(scene)
             screen.StartScreen
          }
        else
          if $PokemonGlobal.pokedexViable.length==1
            $PokemonGlobal.pokedexDex=$PokemonGlobal.pokedexViable[0]
            $PokemonGlobal.pokedexDex=-1 if $PokemonGlobal.pokedexDex==$PokemonGlobal.pokedexUnlocked.length-1
            pbFadeOutIn(99999) {
               scene=PokemonPokedexMenu_Scene.new
               screen=PokemonPokedexMenu_Scene.new(scene)
               screen.pbStartScreen
            }
          else
            $scene = PokemonPokedexMenu_Scene.new # Changed
          end
        end
      end
    end
    @scene.pbEndScene
  end
end