Thank you indeed .
I have found this earlier, but i get a message like this:

mindaugas25, you do not have permission to access this page. This could be due to one of several reasons:

Your user account may not have sufficient privileges to access this page. Are you trying to edit someone else's post, access administrative features or some other privileged system?
If you are trying to post, the administrator may have disabled your account, or it may be awaiting activation.
To fully activate your account, you should click on the activation link on the email that was sent to you when you registered. If you didn't receive any activation email, you can have it resent.

And I have activated my account .