Erro KK Star Ratings

//No arquivo index.php do plugin, substitua:

// $legend = parent::get_options('kksr_legend');
// $legend = str_replace('[total]', $ncasts, $legend);
// $legend = str_replace('[avg]', number_format((float)($avg*($total_stars/5)), 2, '.', '').'/'.$total_stars, $legend);
// $legend = str_replace('[s]', $ncasts==1?'':'s', $legend);
// $Response[$pid]['legend'] = str_replace('[per]',$per.'%', $legend);
$Response[$pid]['legend'] = apply_filters('kksr_legend', parent::get_options('kksr_legend'), $pid);

//Por:

$legend = parent::get_options('kksr_legend');
$legend = str_replace('[total]', $ncasts, $legend);
$legend = str_replace('[avg]', number_format((float)($avg*($total_stars/5)), 2, '.', '').'/'.$total_stars, $legend);
$legend = str_replace('[s]', $ncasts==1?'':'s', $legend);
$Response[$pid]['legend'] = str_replace('[per]',$per.'%', $legend);