[Chadi]

I went in "important and maintenance" and "execute sql query".

I tried:

ALTER TABLE `forum` ADD `forumheader` MEDIUMTEXT NOT NULL AFTER `description`;
ALTER TABLE `forum` ADD `forumfooter` MEDIUMTEXT NOT NULL AFTER `forumheader`;

and got this:

An error occurred while attempting to execute your query. The following information was returned.
error number: 1064
error desc: You have an error in your SQL syntax. Check the manual that corresponds to your MySQL server version for the right syntax to use near ';
ALTER TABLE `forum` ADD `forumfooter` MEDIUMTEXT NOT NULL AF

Why?