Before you unnecessarily remove it, let's try and figure out what doesn't work.
1) What changed on your system / DB / Web server before this stopped working?
2) When you say you don't get the login page, do you get an HTTP 404?
3) If you look at the source of the page (when the login page fails), do you see actual HTML source in the page?
Hello Joel, Sorry for delayed response as I was out of station. There is no change in DB / Web Server. And it's just blank page, no http 404. When I right click and 'view page source', that also gives blank page. Regards, -Anand