Facebook messenger Favorite contacts bar disappeared! How to get it back?

How to get it back and why did it disappear? (iphone 6s iOs 10.2.1)

Facebook may have Removed it in there Latest version of Facebook Messenger you can't get it back

  • Volume bar disappeared on my iPhone 4s? I put my phone on an iphone dock and when i took it off my volume bar disappeared. I tried cleaning it, i tried holding the top button and double clocking the home, i've rebooted it, turned it on and off. Nothings working, please help
  • Volume bar on my iPhone 4 has disappeared? My volume bar has disappeared on my iPhone 4 when I play music through the speakers. I can't hear the typing of my keyboard either, but when I go into voice memos I can listen to them. After that I go into my music library and play music and the volume bar is there for about 5 second and disappears again. I have tried rebooting it and it's done nothing. The sound will just come and go. What the hell is wrong with my iPhone? Please and thank you. P.s it isn't jail broken either.
  • My Facebook messenger notification sound has changed on my iPhone, how do I change it back? It changed by its self and I don't know why, but how do i get it back to original notification sound?
  • My contacts disappeared from my contact list on the iPhone 5s, randomly. How can I get them back? My contact list somehow erased when it was in my purse. The contacts are still there when I create a text message or search someone to text, but I can't dial out because the contacts from my contact list are gone. My iCloud is still on, so it's not that. Is there a way I can get them back?