This looks like an error that has been known for 6 years. If you have a navigation dropdown with links going to the same page, the dropdown will not go away once you click a dropdown item.
The example I am looking at/bug is exemplified by hovering over the “Bikinis” dropdown on the nav and clicking Sultry Surgical. This is on desktop (I have not tested mobile/built it yet). I have not added the other links yet either.
Live site = https://ppe-bikinis-boardshorts.webflow.io/