Recently I had installed Windows 10 Mobile in my Nokia Lumia 925 via Windows Insider App and selected Release Preview and installed Windows 10 successfully and performed hard reset cleared everything and again I installed Windows insider app. Since then occasionally Windows 10 displays this message whenever I open Messaging app "Authorisation required Please re-enter your credentials" it has two buttons "Continue" and "Cancel" if I tap continue nothing happens and if I tap cancel then also nothing happens. Now I've selected "Production ring" in Windows Insider app then also Windows 10 is displaying this error message.