Hello zewitchi,
I had to change Register URI and Lost Password URI in bbPress widget. This was because I had previously WordPress installed on local server.
Hello,
Thank you for your answer.
Meanwhile I have found where the problem is. There were residual links in bbPress widget from my local WordPress installation which I had to change after transfer to server.
After that I have combined bbPress login widget with Clean Login plugin pages to avoid redirection to WordPress login page after user registration. This combination seems to works OK.
Regards