Notifications not showing, Home button not working

A

AC Question

Hi, my notifications have stopped showing, when I swipe down it says "no notifications" even though my lock screen says about them, and I can access some of them through that, also it won't show me the settings when I swipe down, so I have to completely go to "settings" tonswitch WIFI on ect

Also My home button has stopped working a little, when I click "home" while on any app it does nothing even though it's being resonsive through vibrations, it does work when on the main screen to show the apps though.

Another thing, my messaging app was reset today, its normally "hangouts" but then it started showing in the normal app, I have kinda sorted it out, although it's says messages as in "mar 6" or another date even though I got messages moments ago!

Need help asap!!!