Mobile Menu missing in Yoga Studio child theme

I am using the Yoga Studio child theme, the mobile menu and the site logo are missing. I have tried other child themes Band, Finance and Tasty and they all worked fine.
the link to my site is Om Energetics

Hello there,

WordPress system recognize child theme as a separate theme identified by its folder name. Once switched to a child theme, the settings have done while main theme was active might not be retained. Because customizer settings are tied with the previous active theme. To sync it, you could use this plugin: https://wordpress.org/plugins/customizer-export-import/

Regards,
Kharis