Forum I want to add HTML right below the navbar, get an error
 

I am trying to add some content right below the navbar. I am trying to make it so 3 usergroups do not see the content.

I have added: Content Goes Here which i hope is the proper format for making it so if they are not in 23,26,29, they will see the content.

I get an error no matter where I place this piece of code that says something about adding a child to a non-existant node.

Any help would be greatly appreciated. I basically want a table which i can place some information or an advertisement in that would only be visible to the non-subscribers for the forum.