Navigation bar not working - Nostalgia

Hello everyone
I purchased the Nostalgia theme. It’s a great design. But one thing doesn’t work: the navigation bar on the right side. I would like some help please :sweat_smile:
My website is

Hi @ClaireBoutin,

Please contact the author of your purchased theme, the theme author will assist you.

How to contact an author to get support or for any technical query: