It's very likely there's a javascript error with the accordion. It's possible that it's including it's own version of jquery, so you've got duplicate jqueries. You should be able to debug via your javascript console.

To fix it without debugging, you need to get rid of it. Go directly to your dashboard (yoursite.com/index.php/dashboard) then go to the sitemap, click on the page in question, and revert to a previous version through the menu (WITHOUT going to the page).

James

When reverting back to a previous version, remember to delete all the newer versions between the one you approve and the latest version because the SuperAdmin always sees the most recent version even if a previouis versins is 'approved' for the public.