Same issue here: Been working for months and then suddenly all contacts disappeared with blank page. Get error Sorry, something went wrong. Please try again, or refresh the page.
If you continue to have this problem, please report it to Microsoft.
 
Running WXP with IE8 8.0.6001.18702IC. Also get initial error when selecting Skydrive that tells me I am running the wrong version of IE! There is no other for XP. If I click on continue with out updating Skydrive files appear. Calendar and Email works without error. Windows Phone shows all contacts as normal.
 
Messenger has also stopped working within outlook.com telling me that I have been logged out of Messenger. When I click on "Login" , the page refreshes with same error.
 
Steve