CheckNavBar.pl

#!/usr/bin/perl

use v5.10;

use strict;
use warnings;

use lib qw(/opt/otrs /opt/otrs/Kernel/cpan-lib);

use Kernel::Config::Files::ZZZAAuto;

my $Config = {};

Kernel::Config::Files::ZZZAAuto->Load( $Config );

for my $Key ( qw/Frontend::NavigationModule Frontend::Module/ ) {
    check_config_key( $Key );
}


sub check_config_key {
    my ($Key) = @_;

    MODULE:
    for my $Module ( keys %{ $Config->{$Key} || {}  } ) {
        next MODULE if !ref $Config->{$Key};
        next MODULE if 'HASH' ne ref $Config->{$Key};

        my $Data = $Config->{$Key}->{$Module};
 
        TYPE:
        for my $Type ( qw/Group GroupRo/ ) {
            next TYPE if !ref $Data->{$Type};
 
            GROUP:
            for my $Group ( @{ $Data->{$Type} || [] } ) {
                next GROUP if defined $Group && $Group ne '0' and $Group ne '';
                say sprintf 'Please check attribute %s of SysConfig setting %s###%s: "%s" is not a valid Group', $Type, $Key, $Module, $Group;
            }
        }
    }
}

Output

$ perl CheckAdminNavBar.pl 
Please check attribute Group of SysConfig setting Frontend::NavigationModule###AdminTicketTemplatesWorkflow: "0" is not a valid Group
$

Thank you. On line 38 there is an e after the second %s before the hash.

Thanks. It's fixed...