recently i have not been able to login to my admin area, its showing white screen (page) at both http://www.web-design-seo-services.com/wp-admin/index.php and http://www.web-design-seo-services.com/wp-login.php .
I have done the following with no luck:
1. deleted some plugins that i have recently installed
2. replaced wp-admin folder with a backup copy that worked before
3. updated wordpress installation from plesk
no luck so far. any help is appreciated.