Administrator permission lost

I lost permissions administrator and can not manage the site, I looked in the database but I can not fix it, someone can help me to have administrator privileges again?

Unfortunatelly I am not able to help you now, but didnt you only lost your login form? If so, go to yoursite/users/login.php.

Happend to me too. tried to log in as admin, password incorrect. no more access. had to reinstall bitweaver.