Unable to add domains

Hello,

I am having issues with Vexim when I add a domain.  This was previously 
working but has recently stopped.  I'm not exactly sure when it stopped 
working. When I attempt to add a domain I just get a blank page.  I am 
able to add users to existing domains without any issue.  Enclosed below 
are the logs for when I login, when I click on "Add local domain" and 
when I submit the actual domain form.  There are a number of Undefined 
index and variable errors.  The software versions that I am using are 
Apache 2.2.3, PHP 5.2.12 and MySQL 5.0.89.

Has anyone else experienced this?  Does anyone have any ideas as to how 
I can fix the issue?

I appreciate the help in advance.

Kind Regards,
Will G.

=-=-=-= LOGS =-=-=-=
Login to Vexim:

[Thu Jan 21 01:45:51 2010] [error] [client 68.110.13.21] PHP Notice:  
Undefined index:  realname in /var/www/vexim/config/variables.php on 
line 63, referer: http://mail.phaelon.net/
[Thu Jan 21 01:45:51 2010] [error] [client 68.110.13.21] PHP Notice:  
Undefined variable: _SESSION in /var/www/vexim/config/variables.php on 
line 65, referer: http://mail.phaelon.net/
[Thu Jan 21 01:45:51 2010] [error] [client 68.110.13.21] PHP Notice:  
Undefined variable: _SESSION in /var/www/vexim/config/variables.php on 
line 66, referer: http://mail.phaelon.net/
[Thu Jan 21 01:45:51 2010] [error] [client 68.110.13.21] PHP Notice:  
Undefined variable: _SESSION in /var/www/vexim/config/variables.php on 
line 67, referer: http://mail.phaelon.net/
[Thu Jan 21 01:45:51 2010] [error] [client 68.110.13.21] PHP Notice:  
Undefined index:  realname in /var/www/vexim/config/variables.php on 
line 63, referer: http://mail.phaelon.net/
[Thu Jan 21 01:45:51 2010] [error] [client 68.110.13.21] PHP Notice:  
Undefined index:  localpart in /var/www/vexim/config/variables.php on 
line 65, referer: http://mail.phaelon.net/
[Thu Jan 21 01:45:51 2010] [error] [client 68.110.13.21] PHP Notice:  
Undefined variable: _SESSION in /var/www/vexim/config/variables.php on 
line 65, referer: http://mail.phaelon.net/
[Thu Jan 21 01:45:51 2010] [error] [client 68.110.13.21] PHP Notice:  
Undefined variable: _SESSION in /var/www/vexim/config/variables.php on 
line 66, referer: http://mail.phaelon.net/
[Thu Jan 21 01:45:51 2010] [error] [client 68.110.13.21] PHP Notice:  
Undefined variable: _SESSION in /var/www/vexim/config/variables.php on 
line 67, referer: http://mail.phaelon.net/
[Thu Jan 21 01:45:51 2010] [error] [client 68.110.13.21] PHP Notice:  
Undefined index:  domain in /var/www/vexim/config/variables.php on line 
71, referer: http://mail.phaelon.net/
[Thu Jan 21 01:45:51 2010] [error] [client 68.110.13.21] PHP Notice:  A 
session had already been started - ignoring session_start() in 
/var/www/vexim/config/header.php on line 3, referer: 
http://mail.phaelon.net/
[Thu Jan 21 01:45:51 2010] [error] [client 68.110.13.21] PHP Notice:  
Undefined index:  login in /var/www/vexim/config/header.php on line 89, 
referer: http://mail.phaelon.net/
[Thu Jan 21 01:45:51 2010] [error] [client 68.110.13.21] PHP Notice:  
Undefined index:  domain_id in /var/www/vexim/site.php on line 147, 
referer: http://mail.phaelon.net/
[Thu Jan 21 01:45:51 2010] [error] [client 68.110.13.21] PHP Notice:  
Undefined index:  domain_id in /var/www/vexim/site.php on line 147, 
referer: http://mail.phaelon.net/


Add Local Domain:

[Thu Jan 21 01:46:19 2010] [error] [client 68.110.13.21] PHP Notice:  
Undefined index:  realname in /var/www/vexim/config/variables.php on 
line 63, referer: http://mail.phaelon.net/site.php
[Thu Jan 21 01:46:19 2010] [error] [client 68.110.13.21] PHP Notice:  
Undefined index:  localpart in /var/www/vexim/config/variables.php on 
line 65, referer: http://mail.phaelon.net/site.php
[Thu Jan 21 01:46:19 2010] [error] [client 68.110.13.21] PHP Notice:  
Undefined variable: _SESSION in /var/www/vexim/config/variables.php on 
line 65, referer: http://mail.phaelon.net/site.php
[Thu Jan 21 01:46:19 2010] [error] [client 68.110.13.21] PHP Notice:  
Undefined variable: _SESSION in /var/www/vexim/config/variables.php on 
line 66, referer: http://mail.phaelon.net/site.php
[Thu Jan 21 01:46:19 2010] [error] [client 68.110.13.21] PHP Notice:  
Undefined variable: _SESSION in /var/www/vexim/config/variables.php on 
line 67, referer: http://mail.phaelon.net/site.php
[Thu Jan 21 01:46:19 2010] [error] [client 68.110.13.21] PHP Notice:  
Undefined index:  domain in /var/www/vexim/config/variables.php on line 
71, referer: http://mail.phaelon.net/site.php
[Thu Jan 21 01:46:19 2010] [error] [client 68.110.13.21] PHP Notice:  A 
session had already been started - ignoring session_start() in 
/var/www/vexim/config/header.php on line 3, referer: 
http://mail.phaelon.net/site.php
[Thu Jan 21 01:46:19 2010] [error] [client 68.110.13.21] PHP Notice:  
Undefined index:  login in /var/www/vexim/config/header.php on line 89, 
referer: http://mail.phaelon.net/site.php

Submit Form:

[Thu Jan 21 01:46:38 2010] [error] [client 68.110.13.21] PHP Notice:  
Undefined index:  realname in /var/www/vexim/config/variables.php on 
line 63, referer: http://mail.phaelon.net/siteadd.php?type=local
[Thu Jan 21 01:46:38 2010] [error] [client 68.110.13.21] PHP Notice:  
Undefined variable: _SESSION in /var/www/vexim/config/variables.php on 
line 65, referer: http://mail.phaelon.net/siteadd.php?type=local
[Thu Jan 21 01:46:38 2010] [error] [client 68.110.13.21] PHP Notice:  
Undefined variable: _SESSION in /var/www/vexim/config/variables.php on 
line 66, referer: http://mail.phaelon.net/siteadd.php?type=local
[Thu Jan 21 01:46:38 2010] [error] [client 68.110.13.21] PHP Notice:  
Undefined variable: _SESSION in /var/www/vexim/config/variables.php on 
line 67, referer: http://mail.phaelon.net/siteadd.php?type=local