Doesn't work

I installed this plugin and it looks great. It’s exactly what I need in a feedback plug-in. However, when I test the thumbs down feature to send feedback, I keep getting the message, “There was a problem. Please try again”. I went to the support forum and it seems this error is common. Each article used to address the situation was cut off. So, there is no way to diagnose the error. Great idea but poor support.