momgoesincircles on "No one can comment on my blog?"

I recently upgraded to where I am using a custom domain name, since that upgrade, no one is able to comment on my blog posts unless they do so anonymously. i have set and reset the discussions options and have read countless instructions how to do so. The thing is, it was working just fine before I upgraded to the domain name.
Blog url: http://amomgoesincircles.wordpress.com/