[Plugin: Amazon Widgets Shortcodes] Plugin generated 802 characters of unexpected output during acti

Hello,

i′ve already posted this on your own website, but to be sure: i goit the error message: “The plugin generated 802 characters of unexpected output during activation. If you notice “headers already sent” messages, problems with syndication feeds or other issues, try deactivating or removing this plugin.”

Now is this somthing to worry about?

I am using wp 3.1.3

Kind regards, Viktor

https://www.ads-software.com/extend/plugins/amazon-widgets-shortcodes/