[Plugin: JQuery Accordion Menu Widget] Menu not collapsing

I am trying to add the menu to just one page of my site.
I have looked at all the information on this topic and I still do not understand what I need to do. This is what I have gotten so far.
I used a plug in to add the widget are to the page.
https://www.ads-software.com/extend/plugins/jquery-vertical-accordion-menu/