People edge no longer working

[AC Question]

Hello, I have an S6 Edge and updated it a while back to 7.0 Nougat and my people edge has stopped working? The colours no longer show up on the side of the message nor does my phone light up when someone rings. I've got all the notifications on but it's still not working. Not only that when someone texts me their photo no longer appears in the text alert like it use to? Any help would be much appreciated.