Warning: Missing argument 1 for displaysocial

Hello guys i can’t get rit of this problem:

Warning: Missing argument 1 for displaysocial(), called in /public/sites/www.tadeuszsiudak.nl/wp-content/themes/konzept/page.php on line 14 and defined in /public/sites/www.tadeuszsiudak.nl/wp-content/plugins/social-stickers/social-stickers.php on line 701

This code is in page.php:
<?php displaysocial(); ?> </div>

And the other code is in social-stickers.php:

function displaysocial($sortable) {

		$options = get_option('social_stickers_settings');
		$output = "";
		$is_any_active = false;

		if(!$sortable) {
			$output = $output.stripslashes($options['prefix']);
		}

		if($sortable) $output = $output.'<div id="sortable">';
		$stickers_theme_order = $options['theme_stickers_order'][$options['theme']];

		$stickers = array();

		if(is_array($stickers_theme_order)) {
			foreach($stickers_theme_order as $sticker) {
				array_push($stickers, $sticker);
			}
		}
		else {
			foreach($options['stickers'] as $key => $data) {
				if(strlen($data['username']) > 0) {
					array_push($stickers, $key);
				}
			}
		}

		foreach($stickers as $key) {
			$data = $options['stickers'][$key];
			$file = plugin_dir_path(__FILE__).'themes/'.$options['theme'].'/'.$key.'.png';
			$file_url = plugin_dir_url(__FILE__).'themes/'.$options['theme'].'/'.$key.'.png';
			$social_url = str_replace("[:username]", $data['username'], $data['url']);
			if(file_exists($file)) {
				$is_any_active = true;
				if($sortable) $options['mode'] = 0;
				switch($options['mode']) {
					case 0:
						if($sortable) {
							$output = $output.'<div id="social_'.$key.'" style="margin-left: 3px; float: left;"> <a href="'.$social_url.'" title="'.$data['name'].'"><img src="'.$file_url.'" height="32px" width="32px" /></a></div>';
						}
						else {
							if($options['link_new']) {
								$output = $output.' <a href="'.$social_url.'" title="'.$data['name'].'"><img src="'.$file_url.'" height="32px" width="32px" /></a>';
							}
							else {
								$output = $output.' <a href="'.$social_url.'" title="'.$data['name'].'"><img src="'.$file_url.'" height="32px" width="32px" /></a>';
							}
						}
					break;
					case 1:
						if($options['link_new']) {
							$output = $output.' <a href="'.$social_url.'" title="'.$data['name'].'"><img src="'.$file_url.'" height="64px" width="64px" /></a>';
						}
						else {
							$output = $output.' <a href="'.$social_url.'" title="'.$data['name'].'"><img src="'.$file_url.'" height="64px" width="64px" /></a>';
						}
					break;
					case 2:
						if($options['link_new']) {
							$output = $output.' <a href="'.$social_url.'" title="'.$data['name'].'"><img src="'.$file_url.'" height="128px" width="128px" /></a>';
						}
						else {
							$output = $output.' <a href="'.$social_url.'" title="'.$data['name'].'"><img src="'.$file_url.'" height="128px" width="128px" /></a>';
						}
					break;
					case 3:
						if($options['link_new']) {
							$output = $output.'<img src="'.$file_url.'" height="16px" width="16px" alt="'.$data['name'].'" /> <a href="'.$social_url.'">'.$data['name'].'</a>';
						}
						else {
							$output = $output.'<img src="'.$file_url.'" height="16px" width="16px" alt="'.$data['name'].'" /> <a href="'.$social_url.'">'.$data['name'].'</a>';
						}
					break;
				}
			}
		}

		if($sortable) {
			$output = $output."</div>";
		}

		if(!$is_any_active) {
			if($sortable) $output = $output.'<span class="description">Please enter a username for any of the available profiles to see the preview.</span>';
			else $output = $output.'<span class="description">No social profiles are available.</span>';
		}

		if(!$sortable && $options['powered_by_msg']) {
			$output = $output.'

Powered by <a href="https://wpplugz.is-leet.com">wpPlugz</a>.';
		}

		if(!$sortable) {
			$output = $output.stripslashes($options['suffix']);
		}

		echo $output;

	}

	// Here, the widget code begins
	class social_stickers_widget extends WP_Widget {

		function social_stickers_widget() {
			$widget_ops = array('classname' => 'social_stickers_widget', 'description' => 'Display the social networks you use!' );
			$this->WP_Widget('social_stickers_widget', 'Social Stickers', $widget_ops);
		}

		function widget($args, $instance) {

			extract($args);
			$title = apply_filters('widget_title', $instance['title']);

			echo $before_widget;

			if($title) {
				echo $before_title . $title . $after_title;
			}

			// The widget code and the widgeet output

			display_social_stickers(false);

			// End of widget output

			echo $after_widget;

		}

	    function update($new_instance, $old_instance) {
			$instance = $old_instance;
			$instance['title'] = strip_tags($new_instance['title']);
	        return $instance;
    	}

		function form($instance) {	

        	$title = esc_attr($instance['title']);

?>

			<p>
				<label for="<?php echo $this->get_field_id('title'); ?>">
					<?php _e('Title: '); ?>
	            </label>
				<input class="widefat" id="<?php echo $this->get_field_id('title'); ?>" name="<?php echo $this->get_field_name('title'); ?>" type="text" value="<?php echo $title; ?>" />
			</p>

<?php 

		}

	}

?>

[Moderator Note: Please post code or markup snippets between backticks or use the code button. Or better still – use the pastebin. As it stands, your code may now have been permanently damaged/corrupted by the forum’s parser.]

I will appreciate if somebody can solve this warning.

Greetz