We recently became aware of a recurring problem when you try to play through the Granite Square Mission "Pimps and Hos". One of the women that you need to click on would make a connection problem occur. No amount of refreshing would clear the connection problems.
The issue with the mission is known, and we hope to have a fix for the problem pushed out soon. In the meantime, you may be unable to complete the mission until the problem is fixed.
Thanks for your patience. There is no need to submit a support ticket for this issue.
--The Mafia Wars 2 Support Team