Still No notification

Hi, Like the look of AP, just installed it. But when users comment or reply, Still no notification appear in Buddypress Notification.

I’ve tried switching back to the default WordPress theme, still no working. Also deactivating some plugins, still nothing happens.And in the Option and Add-ons, Buddypress and Notification are also enabled. I use WordPress V.4.7.5, Anspress v.4.0.5, BuddyPress v.2.8.2.

Any help?