Mobile navigation do not work - only shows 3 bars

Hi,

Can you please advise me how to make the primary menu on mobile works
It only shows 3 bars when clicking on it .. it is not active (show nothing)
I have no experience in writing code .. although I went and search in yr documentation
generate_inside_mobile_menu_bar
The generate_inside_mobile_menu_bar hook appears inside the .mobile-bar-items element which exists if your navigation search is enabled. This element only displays on mobile.

I did not find that in the GP Hook

awaiting for yr support
Regards