After installing this plugin a 1st warning message came up in the plugins area in the backend: "The plugin generated 223 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."
Then I viewed a page on my site where I had put the [rating] shortcode and 2 things happened
- a facebooklikebutton.co link appeared above my site menu (disappeared after disabling this menu).
- after rating the page, a hole list of 'headers already sent' errors appeared.
Using the newest WP. Am I the only one getting these?