Membership2 pro plugin stops menu to work

Membership2 pro plugin stops menu to work, If a page has membership access enabled and if a user with/without page access login and check that page menu is not working in mobile, the menu is working as it is if the page doesn't have membership protection enabled

http://smartminds.io/staging this page has MU plugin content protection enabled and Menu is not working.
In this page content protection is disabled so menu is working
http://smartminds.io/staging/about-us/ please help me solve this issue asap.

The Grant access is given by my client https://premium.wpmudev.org/profile/speak/