Thank you for the credentials.
Nothing seems out of the ordinary that I saw in the backend. When I attempted to log in on the front-end, it brought me to
gemmaquinnells.co.uk//index.php?Itemid=741. If you notice, there's an extra slash in the URL. If I change it to
gemmaquinnells.co.uk/index.php?Itemid=741 then the page properly goes to the Student Home page area. Do you have any SEO extensions/settings that you've configured that could possibly cause this?
Also, you had the 'System - Page Cache' plugin enabled and it was preventing me from logging in on the front-end. This plugin should not be enabled on a site that requires authentication, so I've disabled it.
-Melissa