Cannot sing in to Nokia Suite or download apps fro...

I'm trying to download apps on my computer and when I click 'Download via PC' it starts a download but then i get a message 'something went wrong (#400)!' and on nokia suite pops up 'Can't connect to service' etc.
Then I tried to sing in on nokia suite to try to download apps directly. I wrote my email and my password and when I clicked sing in I got a message saying: 'Could not sign in. There was a problem with connecting to your nokia account. Make sure the internet connection is working properly, and try again'.
I'm having this problem about five - six weeks now. And I can't download apps at all. My phone is nokia asha 201 and computer os is windows 7 32-bit.
Please help me, please 
something went wrong.jpg ‏54 KB
cant connect to service.jpg ‏128 KB
could not sign in.jpg ‏119 KB

@josue_campos please, attach a screeshot of that error message and give at least one example app (and your phone model), so we are able to reproduce this here.