Hamburger menu disapear

Hi guys, I don’t know why but my hamburger menu don’t work on tablet and mobile. The menu icon isn’t on my screen -> see in my preview link.

Thank you

Here is my site Read-Only: LINK
(how to share your site Read-Only link)

Hi @Mathieu_Gesbert

Can you provide the preview link - it’s not showing on your original post…

sorry man, here it is :