Multi Site stopped working. All sites redirecting to main site.

I have had this working successfully for some time now, but today for some reason it just stopped. I have no clue what happened. can someone please take a look for me.

The site that is redirecting is myinsurancepage.com. I can log into the back end at myinsurancepage.com/wp-admin but when i try to access the front end of the website i get redirected to naoia.com.

Support access is ACTIVE until February 1, 2015 8:29 pm

Thanks,
William