Unfortunately, Google Search has this as the top related item when searching for this problem.
I too have this same exact issue, only I didn't update Sonic, I updated Silverlight (automatic updates yesterday) and the error is for Sonic! Confusing I know! That's why we are looking for help! Apparently, the issue still exists, people still need help, and an old thread is better than starting a new one, don't ya think?
I'm filling out a help ticket on Microsoft Support Page, and if I get an answer and a fix to this, I'll let y'all know!