Can't access my messages folder
I'm using iPhone 6 with iOS 9.0.2 running in it. Everything was running smooth but suddenly i can't access my messages folder. whenever i touch to open the message folder, a window comes but it remains white, nothing happens & after a while the window closes automatically. i still receive texts, can reply them with the quick reply option but cannot access the message folder. Tried everything including restoring the iPhone but no luck 😟. any solution?
iPhone 6, iOS 9.0.2