Navigation menu disappeared

I’ve made some wrong changes in my css and my pages navigation menu has disappeared. How to bring it back? I can’t show my pages. my site is ACCA Past Papers. Theme is pilcrow.

I don’t see the navigation in your html when I look at the source for your page.

If your problem is with the way you’ve edited a WordPress theme, you might want to ask for this thread to be moved to the WordPress section of the forums. I think you might be more likely to find the folk who could help you there.