Please help: status page of NoCat gateway

Dear all,

I installed nocat gateway 0.82 and authserv on separated boxes, and
use freeradius for accounting.  I have applied pogozone
NoCatAuth-0.82+RADIUS-20031015.patch. I think all of features of
pogozone accounting patch is work fine for me.  The raddact table of
radius accepted detail sent by nocat.  However, when I tried
http://192.168.32.1:5280/status, session id in user table is blank,
and in my nocat.log of gateway there are errors:

[2005-03-13 16:04:38] Connection to 192.168.32.1 from 10.10.49.129
[2005-03-13 16:04:38] Use of uninitialized value in concatenation (.)
or string at /usr/local/nocat/bin/../lib/NoCat/Gateway.pm line 572,
<GEN94> line 8.
[2005-03-13 16:04:38] Serving status page  10.10.49.129.

My gateway.pm line  is:

line 571 : $SessionId = $peer->session_id;
        $user_table .= qq{<tr><td>$FormatOn$id$FormatOff</td>}
                . qq{<td>$FormatOn} . localtime($u->connect_time) .
qq{$FormatOff</td>}
                . qq{<td align="center">$FormatOn$ConnectedMin$FormatOff</td>}
                . qq{<td align="center">$FormatOn$MinLeft$FormatOff</td>}
                . qq{<td align="center">$FormatOn<a
href="http://standards.ieee.org/cgi-bin/ouisearch?$MacSearch">$Mac</a>$FormatOff</td>}
            . qq{<td align="center">$FormatOn$SessionId$FormatOff</td></tr>\n};
    }

line 580: $self->log( 8, "Serving status page ", $peer->socket->peerhost );

The number of line "Use of unitialized..." equal the number of active
connection.

I have searched the answer to this problem on archive of nocat mailing
list, but I cant find it.  I found problem posted by Shubho Biswas, on
 Mon, 09 Feb 2004 that quite similar to this problem, but cant find
how he can solve his problem.

I have posted this problem to this mailing list a number of times, but
without answers.  I also have tried to search with google with search
key "Use of unitialize...", and found only results that listed my own
questions.

Would someone please point me any source that can solve my problem. 
Any response would be greatly apreciated.

Thanks in advance

Best Regards,

Ery