[horde] Horde Portal

[Adrian Walters]

I am getting the following error when I try to use the Portal Section of Horde:

Notice: argument passed to unserialize() is not an string 
in /var/www/html/mail/horde/portal_edit.php on line 42

Warning: Invalid argument supplied for foreach() 
in /var/www/html/mail/horde/portal_edit.php on line 327

Warning: Cannot add header information - headers already sent by (output 
started at /var/www/html/mail/horde/portal_edit.php:42) 
in /var/www/html/mail/horde/templates/common-header.inc on line 3

Warning: Cannot add header information - headers already sent by (output 
started at /var/www/html/mail/horde/portal_edit.php:42) 
in /var/www/html/mail/horde/templates/common-header.inc on line 4