Seeing Hidden Menu with screen reader under primary menu

Hello team,
I am a screen reader user & recently installed Sensei, woo commerce & storefront on my site. I created a menu called primary & assigned it to primary location which shows properly in frontend. Below this menu I also see all the links of the pages & this menu is hidden visually too. I checked with a sighted assist & they confirm they only see my primary menu… Let me know if there is a bug with plug-in or theme or I need to change some settings.

Here is the URL
https://courses.digitala11y.com