Since you don't have access to logs or command line, here is what I would suggest. Change the line
<i>my $xml = XMLin("$name.xml", searchpath => ['users']);</i>
to...

my $xml = XMLin("$name.xml", searchpath => ['users']);
use Data::Dumper;
print "<pre>" . Dumper($xml) . "</pre>";
[download]

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Then look for an element named 'adress'. I would assume you mean 'address' from the following line.
<i>print $xml->{email}<br>$xml->{adress}</i>

--Kristofer

Updated: added code tags