Comments returning error message

Hi there,

We've been getting reports that people are getting error messages when trying to post a comment to our blog. I tried it myself and found that Firefox works fine, but IE, Chrome and Safari are giving this error when I try to submit the comment: "Sorry, something went wrong. Please include the following information in your error report. Status: 0 Status Text: error Response Text: {nothing} (see attachment). Here's a link to the blog: https://www.aglow.org/about/president/janes-blog/entry/a-summer-of-unrest-1

Hope you can help!