Thank you for your patience, but I still have troubles logging in. Even if I tried to enter login and password (case sensitive, ofc.). I still got "Autorisation failed!" error. I tried to reset PW, but when I clicked on the button that came in mail, I got redirected to website saying "Request processing error!" message. I feel really dumb, never happened something like this before (I mean when creating other accounts for other games, forum, etc.). Maybe the best option would be to delete account, so I could create another one, and go the normal way through registration process. (Yes, email attached to it is the same as the one connected to forum account.)