I have problems with the "contacts". I cannot open the "contacts" . Since 2 weeks, if I press the button "Contacts", it tries for some seconds, then it says - there are problems - please tell microsoft, that there is a  problem. I always do, but nothing happens.

And if I start to write a new letter  to a person from the contact, I have to fill in the whole adress by myself. Even if I want to answer a mail and press "reply", I have to write the e-mail-adress by myself. Thats strange, isn`t it?