post sidebar menu duplicated in using specific content for mobile plugin

This is a great plugin, BUT the listing on the sidebar menu is duplicated and I can’t figure out how to remove the duplication. I’m using the UnWind theme by SiteOrigin. Interesting, neither of these two menu listings refers to the mobile page (which uses the word above rather than left for the captions. I found a forum thread that suggested two possible css codes to fix a similar problem but neither worked. I’m just a volunteer with limited experience in web design and coding … but I’ve gotten this far! THANKS!

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