Examples are not working / to be found

How can I see the examples working?

Now I get the following popup:

“Warning: file_get_contents(http://www.koninkrijkgods.nl/wp-content/plugins/shortcodes-ultimate/inc/examples/spoilers.example) [function.file-get-contents]: failed to open stream: Connection refused in /home/vhosts/koninkrijkgods.nl/httpdocs/wp-content/plugins/shortcodes-ultimate/inc/core/tools.php on line 744

Example code does not found, please check it later”

http://wordpress.org/plugins/shortcodes-ultimate/