Problems with shortcode

Hi,

I’m having problems with your plugin, in particular with the shortcode to exclude part of the posts from displaying the links to the glossary.
When I insert the shortcode [glossary_exclude]…[/glossary_exclude] into posts, the page displays incorrectly as in the attached link. If I then remove the shortcode and put it back, the page displays correctly again.
Thank you.

The page I need help with: [log in to see the link]