Parse error: syntax error

Just lost my entire site. Stuck on this error code:

Parse error: syntax error, unexpected ‘[‘ in /home/whatmuse/public_html/wp-content/plugins/nextgen-gallery/non_pope/class.nextgen_shortcode_manager.php on line 127

Not sure what I did. I have never tried to edit the files since I don’t know what I’m doing. But I was reading. Did I hit a key??

Here is the code:

`
<?php

class C_NextGen_Shortcode_Manager
{
private static $_instance = NULL;
private $_shortcodes = array();

/**
* Gets an instance of the class
* @return C_NextGen_Shortcode_Manager
*/
static function get_instance()
{
if (is_null(self::$_instance)) {
$klass = get_class();
self::$_instance = new $klass;
}
return self::$_instance;
}

/**
* Adds a shortcode
* @param $name
* @param $callback
*/
static function add($name, $callback)
{
$manager = self::get_instance();
$manager->add_shortcode($name, $callback);
}

/**
* Removes a previously added shortcode
* @param $name
*/
static function remove($name)
{
$manager = self::get_instance();
$manager->remove_shortcode($name);
}

/**
* Constructor
*/
private function __construct()
{
add_filter(‘the_content’, array(&$this, ‘deactivate_all’), 1);
add_filter(‘the_content’, array(&$this, ‘parse_content’), PHP_INT_MAX-1);
}

/**
* Deactivates all shortcodes
*/
function deactivate_all($content)
{
foreach (array_keys($this->_shortcodes) as $shortcode) {
$this->deactivate($shortcode);
}

return $content;
}

/**
* Activates all registered shortcodes
*/
function activate_all()
{
foreach (array_keys($this->_shortcodes) as $shortcode) {
$this->activate($shortcode);
}

}
/**
* Parses the content for shortcodes and returns the substituted content
* @param $content
* @return string
*/
function parse_content($content)
{
$this->activate_all();
return do_shortcode($content);
}

/**
* Adds a shortcode
* @param $name
* @param $callback
*/
function add_shortcode($name, $callback)
{
$this->_shortcodes[$name] = $callback;
$this->activate($name);
}

/**
* Activates a particular shortcode
* @param $shortcode
*/
function activate($shortcode)
{
if (isset($this->_shortcodes[$shortcode])) {
add_shortcode($shortcode, $this->_shortcodes[$shortcode]);
}
}

/**
* Removes a shortcode
* @param $name
*/
function remove_shortcode($name)
{
unset($this->_shortcodes[$name]);
$this->deactivate($name);
}

/**
* De-activates a shortcode
* @param $shortcode
*/
function deactivate($shortcode)
{
if (isset($this->_shortcodes[$shortcode]))
remove_shortcode($shortcode);
}
}

http://wordpress.org/plugins/nextgen-gallery/