Added Appointments+ to Buddypress, changed Tab to "Request a Call" - but button not workin

Hi there - I used the file app-bp-frontend-booking-master.zip given to me. But after installation, the Tab (Request a Call), doesn't work. It redirects to Members page, but instead it should show the Appointments+ calendar. Example: http://hausie.com/members/amy-cheng. Please advise. Thanks!