I was in my admin panel, and was having some blog formatting issues with a new theme I installed (ProfitsTheme).
Started to mess around. Went to Settings<General> - and went to change the Site URL and Home URL as to see if that would fix the formatting on my Blog page. Never the less I messed up the directory, and so on so on.
Semi savvy here, but lost. When I went to save the page, I got the white page, and can now no longer see my wp-admin page to change it back.
Found this Thread on here: http://wordpress.org/support/topic/messed-with-url-help?replies=7
Did EVERYTHING, and NOTHING helped.
I even when into mySQLadmin panel and it shows my directory as still being http://ebmmediagroup.com/blog
Anywho, I've tried almost everything and every combo of options from changing functions.php files both in my main Directory and Themes Directory.