[Steven Zahm]

@ Tim

The card.php file was modified overwriting the $atts var. This is the error line:

printf( '<a class="cn-note-anchor toggle-div" id="note-anchor-%1$s" href="#" data-uuid="%1$s" data-div-id="note-block-%1$s" data-str-show="%2$s" data-str-hide="%3$s">%2$s</a>',
	$entry->getRuid(),
	$atts = 'Show Research',
	$atts = 'Hide Research'
);

I changed it to this:

printf( '<a class="cn-note-anchor toggle-div" id="note-anchor-%1$s" href="#" data-uuid="%1$s" data-div-id="note-block-%1$s" data-str-show="%2$s" data-str-hide="%3$s">%2$s</a>',
	$entry->getRuid(),
	$atts['str_note_show'] = 'Show Research',
	$atts['str_note_hide'] = 'Hide Research'
);

That fixed the issue.

If you have a moment, I would truly appreciate a review as they really do make a difference. Many thanks in advance!
http://wordpress.org/support/view/plugin-reviews/connections