MySQL Error

Hello,

I'm getting the following error when trying to add a new record. It's being caused by one of the fields which is a "list" field that is pulling it's values from another database table field.

Warning: Cannot modify header information - headers already sent by (output started at /home/test/public_html/cmsAdmin/lib/menus/header.php:15) in /home/test/public_html/cmsAdmin/lib/database_functions.php on line 557 There was an error creating the list field. MySQL Error: Unknown column '' in 'field list'

Any ideas?

Thanks!