[Plugin: Facebook Comments for WordPress] The comments plugin requires an href parameter

I’m getting an error that reads “The comments plugin requires an href parameter.” where the comments box should be. The comments box was not working because of a plugin called Simple Facebook Connect, so I disabled it. The comments then worked. But, once I removed the shortcode for the SFC Like Button from my Executable PHP widget box, the comments plugin died again. Can anyone point me in the right direction here?

Here’s the shortcode I was using:

<?php
sfc_like_button( array (
		'id'=>0,
		'layout'=>'standard', 		// standard or button_count
		'showfaces'=>'true', 		// true or false
		'width'=>'215',
		'height'=>'65',
		'action'=>'recommend',			// like or recommend
		'colorscheme'=>'light',		// light or dark
		'font' => 'lucida+grande',	// arial, lucida+grande, seqoe+ui, tahoma, trebuchet+ms, or verdana
) );
?>

[Please post code snippets between backticks or use the code button.]