[Script] Hello There. Please Help

[076mrayquaza]

Hi everyone, I am new at this and I get this error every time I want to configure de options of the game...

The Error says: Script 'PokemonOptions' line 406 NoMethodError occurred
Undefined method ´autosave' for nil: NilClass

LINE 406: if $PokemonGlobal.autosave==false

The script in the game is:
Lines:
}
),
EnumOption.new(_INTL("Autosave"),[_INTL("On"),_INTL("False")],
proc { $PokemonSystem.autosave },
proc {|value|
$PokemonSystem.autosave=value
if value==0
if $PokemonGlobal.autosave==false
params=ChooseNumberParams.new
params.setRange(1,60)
params.setInitialValue(5)
params.setCancelValue(5)
savetime=Kernel.pbMessageChooseNumber(
_INTL("How many minutes between autosaves? (1-60)"),params
)
$PokemonGlobal.autosavetimer=savetime*60 #converts choice to seconds
end
$PokemonGlobal.autosave=true
else
$PokemonGlobal.autosave=false
end
}
),

Any ideas?