I have issue with my theme

I have used Logistics HubVersion: 1.1 By Liquid Themes (link removed).
I have an issue with the menu, it does not appear when using Chinese or Arabic pages only on English pages.
site URL: (link removed)
can any one help me to fix it?

the author does not respond to me and still have an issue with the menu of the site…
need someone to help me.
The menu is not showing on mobile.

The free item support is being provided by the item author.
If you’re looking for paid support, I’m available, you can contact anytime.