Display related pages under the related category

[2014-06-25 04:34:13] (ERROR @ /nestnew/nboss/index.php) Could not load class: Tagger from tagger.
[2014-06-25 04:34:13] (ERROR @ /nestnew/nboss/index.php) Problem getting service tagger, instance of class Tagger, from path C:/wamp/www/nestnew/ore/components/tagger/model/tagger/

[2014-06-18 15:51:28] (ERROR @ C:\wamp\www\nestnew\ore\xpdo\cache\xpdocachemanager.class.php : 510) PHP warning: unlink(C:/wamp/www/nestnew/ore/cache/includes/elements/modsnippet/19.include.cache.php) [<a href='function.unlink'>function.unlink</a>]: No such file or directory
[2014-06-18 15:51:28] (ERROR @ C:\wamp\www\nestnew\ore\xpdo\cache\xpdocachemanager.class.php : 518) PHP warning: closedir(): 172 is not a valid Directory resource

$fields = array(    /* to hold Gallery snippet call */
   $album => $resource->getTVValue('ActivityAlbumTitle'),
   $toPlaceholder => 'gallery',
   $limit => 1,
   $tag => 'lead',
   $thumbTpl => 'nest_galItemLink',
   $linkToImage => 1
);

$output .= $modx->runSnippet('Gallery', $fields);   /* to output Gallery snippet call */
 
$fields2 = array(     /* to hold Gallery snippet call */
   $album => 'nctl',
   $toPlaceholder => 'gallery2',
   $tag => 'follow',
   $thumbTpl => 'nest_galItemFollowLink',
   $linkToImage => 1
);

$output .= $modx->runSnippet('Gallery', $fields2);   /* to output Gallery snippet call */


$output .= $modx->runSnippet('Gallery', array(
   $album => $resource->getTVValue('ActivityAlbumTitle'),
   $toPlaceholder => 'gallery',
   $limit => 1,
   $tag => 'lead',
   $thumbTpl => 'nest_galItemLink',
   $linkToImage => 1
));   /* to output Gallery snippet call */



$fields3  = array();
$fields3['album'] =  $resource->getTVValue('ActivityAlbumTitle');
$fields3['toPlaceholder'] =  'gallery';
$fields3['limit'] =  1;
$fields3['tag'] = 'lead';
$fields3['thumbTpl'] =  'nest_galItemLink';
$fields3['linkToImage'] =  1;

$output .= $modx->runSnippet('Gallery', $fields3);   /* to output Gallery snippet call */

$fields3  = array();
$fields3['album'] =  $resource->getTVValue('ActivityAlbumTitle');
$fields3['toPlaceholder'] =  'gallery';
$fields3['limit'] =  1;
$fields3['tag'] = 'lead';
$fields3['thumbTpl'] =  'nest_galItemLink';
$fields3['linkToImage'] =  1;

$fields3['album'] =  $resource->getTVValue('ActivityAlbumTitle');

$fields3['album'] =  'MyAlbum';