Link Library Producing Error

I am getting the following error when I paste the shortcode onto a page…Warning: Cannot modify header information – headers already sent by (output started at /home/content/65/7809465/html/wp-content/plugins/link-library/link-library.php:986) in /home/content/65/7809465/html/wp-includes/pluggable.php on line 876

Any ideas how to fix it?

http://ww.wp.xz.cn/extend/plugins/link-library/