[Plugin: fix-rss-feed] RSS problem

I’m new to blogging and creating websites and I have a blog on WordPress and someone wanted to subscribe to my blog but they was having a problem with my rss??? I don’t know what this mean can you help me? Here is my blog address: http://myecashsystem.com/blog/?p=1

http://wordpress.org/extend/plugins/fix-rss-feed/

[duplicate of http://wordpress.org/support/topic/help-with-rss-2?replies=2%5D