Cannot download apps from App Store using iPhone 6

Cannot download applications from App Store using my iPhone 6, and when I made a sign out, I cannot sign in, even I asked to reset my Apple ID account by e-mail, but I did not receive any feedback by mails yet, while I can access the App Store, and download apps using my old iPhone 4, and my iPad Air using the same account.

I Stuck now, and what I read cannot help me, as I cannot sign in even.