My guess is that 

my $action    =  param('action');

[download]
yields an undefined value, thus 
$action eq 'ΑποστοΞ
+»Ξ®!'

[download]
is responsible for the "uninitialized value in string eq" warning.

Are you sure your index.pl is being invoked with the same query string as before?

In reply to Re: Weird error after a configuration change by shigetsu
in thread Weird error after a configuration change by Nik

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