I too have the same problem. This is the plugin, https://wordpress.org/plugins/disqus-comment-system/
Oh yes there was an issue, I just fixed it. please get latest codes form github: https://github.com/open-wp/anspress and let me know.
Thanks for the quick answer. I had version 1.3.1 installed, but it doesn’t work. I also tried installing the latest version from github, but still the same. You can try it yourself here: http://www.pcsteps.gr/questions-and-answers/ask
I have fixed this bug just a while ago, please get latest version 1.3.1 and this will solve your issue.