Not working right

Trying to view expandable/collapsible product categories, so tried your plugin. Have it setup to view expandable/collapsible in sidebar widget, but +/- signs don’t show up on the top levels, and when I click on a top-level category it navigates to the archive page where the expand/collapse function works, but you can’t see the +/- still. Site is in dev mode so no link, but I can post whatever info is needed. Thanks.