having problems with opening emails after signing in

I`ve been experiencing problems with my outlook account. Today is the second time when I see the same error in my account after logging in. It shows either an `old-looking beta version` of the account (absolutely useless), or everything seems fine except the only option at the top of my screen is `New` and when I click on my emails nothing happens. There is no delete option or any other options except for new emails but that doesn`t work either. It seems as if it was frozen. I can sign in and sign out, that`s all. I`ve tried different browsers and computers but no difference. The online service check says that everything works fine. Thank you for your help,

KK