Configuration tab doesnt work in the admin panel

Hi guys

I cant seem to access any of the menu items in the configuration tab in my admin panel. It just brings me to a blank page.

Does anyone know how I can fix this issue?

Thanks

See: http://www.zen-cart.com/content.php?124-blank-page

Post contents here as necessary, but remember to obscure your *SECRET* admin folder name. (Could just replace with admin)