Error after install…

After I installed Sharexy I get the following at the top (the plugin does not appear in the blog posts) :

Warning: file_get_contents() [function.file-get-contents]: URL file-access is disabled in the server configuration in /home/content/44/5010344/html/wp-content/plugins/sharexy/SharexyAdmin.php on line 234

Warning: file_get_contents(http://shuttle.sharexy.com/wordpress_data/styles_name.json) [function.file-get-contents]: failed to open stream: no suitable wrapper could be found in /home/content/44/5010344/html/wp-content/plugins/sharexy/SharexyAdmin.php on line 234

Any thoughts ????

http://wordpress.org/extend/plugins/sharexy/