Blank page on login

[Taras]

I've installed pphlogger without problems.
http://ptsc.info/pphlogger/
Admin runs good.
I've registered as user and get e-mail (Subject: account activation - teenpage) without any activation code.
When I'm trying to login, I get just blank page and http://ptsc.info/pphlogger/login.php in address field.
Help please.
username: teenpage
password: Hzi7V
Or you may register yourself. Registration works.