jede version benutzt leider andere Variablen um den namen un die größe der standart schriftart zu speichern.
ersetze main mal hiermit:
Code: 
begin
  #:::::::::::::::::::::::::::
  # Font-Variablen
  $defaultfonttype = $fontface = Font.default_name = "Arial"
  $defaultfontsize = $fontsize = Font.default_size = 22
  #::::::::::::::::::::::::
  
  # Prepare for transition
  Graphics.freeze
  # Make scene object (title screen)
  $scene = Scene_Title.new
  # Call main method as long as $scene is effective
  while $scene != nil
    $scene.main
  end
  # Fade out
  Graphics.transition(20)
rescue Errno::ENOENT
  # Supplement Errno::ENOENT exception
  # If unable to open file, display message and end
  filename = $!.message.sub("No such file or directory - ", "")
  print("Unable to find file #{filename}.")
end